Update axis registry: YEAR, ELSH, ELGR (#5333)

* Creating `flair.svg`

* y_transparent_descender.textproto Use depth, not height

* weight and width textprotos updated to say stroke weight

* update tox

* run black

* wip name builder

* add build_fvar_instances

* black

* wip linked values

* fix vf name table generation for sibling fonts

* add nameID25

* black

* test static name table generation

* rm local stuff

* add prelim fvar instance check

* improve fvar instance checks

* cleanup stat tests

* run black

* fix tests

* ignore egg-info

* ignore _version

* refactor name check

* Add VF tests

* black

* add logging

* clean up

* convert AxisRegistry into a class

* clean up

* use enums

* replace old family name with new name

* add test for style name which is not part of the allowed static fonts

* add nameID25 checks

* add build filename

* fix replacing names

* simplyify

* implement Simon feedback

* Add wonky example

* do not delete stat name ids if they are used in the fvar table

* do not delete name records which are needed elsehwere

* implement simon feedback

* actions: publish release added

* build_fvar_instances: support fonts which lack wght axis

* AxisRegistry: add items method

* add _fvar_instance_collision.

Determine whether a family of fonts will have fvar instances which collide

* add axis ordering

* fix fvar_collision heuristic

* black

* Don't delete name IDs which are shared with the STAT table

* Update __init__.py

* build_fvar_instances: fix typo

* fix dependencies

* black

* update tox

* tox black: ignore _version.py

* Move nameid25 to its own func

* make family_name optional

* Custom axis YEAR added

* Year url/repo ref added

* ESHP custom axis added

* EGRD custom axis added

* Update Lib/axisregistry/data/element_shape.textproto

Change ESHP axis tag to ELSP

* Add Extrusion Depth and Edge Highlight axes for Nabla

* Update Lib/axisregistry/data/extrusion_depth.textproto

Co-authored-by: Just van Rossum <justvanrossum@gmail.com>

* Update edge_highlight.textproto

Use Nabla's default value rather zero

* Update extrusion_depth.textproto

Use Nabla's default value rather zero

* Add a fallback to egrid

* Update name of fallback per https://github.com/rosettatype/handjet#element-grid-axis-egrd

* For reasons unknown fallbacks don't have spaces in names

* Add default fallback entries

* Default falback added

* order fix

* ELSP Default falback added

* All axes must have a fallback

(issue #67)

* Adding the default fallback requirement

* sync with google/fonts

* Revert "sync with google/fonts"

* sync google/fonts axisregistry changes with googlefonts/axisregistry

includes Edge Highlight, Element Grid, and Extrusion Depth edits

* fallback_only metadata added

* fallback_only metadata added

* Update EDPT description

based on discussion with Sarah Daily

* Update element_grid.textproto

Element shape is ELSH, so Element grid should be ELGR

* HyperExpansion axis added

* Update hyper_expansion.textproto

* italic.textproto reduce precision from -1 to 0

Since we don't support the ital axis, in fact, and require separate roman and italic files at the moment (due to concerns eg in https://arrowtype.github.io/vf-slnt-test), then we should reflect that actual implementation in the axis definition. 

Since we have zero families with an ital axis, this should be a no-op when pushed; but this is a very peculiar move, and may have unexpected consequences when pushed.

* Update hyper_expansion.textproto

* Update flair.textproto to correct precision to -1

* Update element_shape.textproto

* description updated with more details

* description updated with more details + moved to bottom

Co-authored-by: Elliot Jay Stocks <elliot@elliotjaystocks.com>
Co-authored-by: Dave Crossland <dave@lab6.com>
Co-authored-by: Marc Foley <m.foley.88@gmail.com>
Co-authored-by: Nathan Williams <nlw2sx@virginia.edu>
Co-authored-by: Simon Cozens <simon@simon-cozens.org>
Co-authored-by: Chris Simpkins <chris@sourcefoundry.org>
Co-authored-by: Just van Rossum <justvanrossum@gmail.com>
Co-authored-by: Rod S <rsheeter@google.com>
Co-authored-by: Felipe Corrêa da Silva Sanches <juca@members.fsf.org>
Co-authored-by: Rosalie Wagner <mail@rosaliewagner.com>

axisregistry/Lib/axisregistry/data/element_grid.textproto

@@ -1,14 +1,16 @@
 #Element Grid, based on https://github.com/rosettatype/handjet
-tag: "EGRD"
+tag: "ELGR"
 display_name: "Element Grid"
 min_value: 1.0
 default_value: 1.0
 max_value: 2.0
 precision: -1
-description:
-  "Controls how many elements are used per one grid unit."
 fallback {
   name: "Default"
   value: 1.0
 }
-fallback_only: false
+fallback_only: false
+description:
+  "In modular fonts, where glyphs are composed using multiple copies"
+  " of the same element, this axis controls how many elements"
+  " are used per one grid unit."

axisregistry/Lib/axisregistry/data/element_shape.textproto

@@ -0,0 +1,15 @@
+#Element Shape, based on https://github.com/rosettatype/handjet
+tag: "ELSH"
+display_name: "Element Shape"
+min_value: 0.0
+default_value: 0.0
+max_value: 100.0
+precision: -1
+fallback {
+    name: "Default"
+    value: 0.0
+  }
+fallback_only: false
+description:     
+  "In modular fonts, where glyphs are composed using multiple copies"
+  " of the same element, this axis controls the shape of the element"

axisregistry/Lib/axisregistry/data/year.textproto

@@ -0,0 +1,15 @@
+# YEAR based on https://github.com/dancoull/ClimateCrisis
+tag: "YEAR"
+display_name: "Year"
+min_value: -4000
+default_value: 2000
+max_value: 4000
+precision: 0
+fallback {
+  name: "Default"
+  value: 2000
+}
+fallback_only: false
+description: 
+  "Axis that shows in a metaphoric way the effect of time on a chosen topic."
+