Move tests, create makefile action to run tests on examples (#433)

* Move tests, create makefile action to run tests on examples

* Correct import file for html files

* Build environment for tests

* Fix the CI

* rearrange CI

* fix find cmd and make sure we don't delete the folder implicitly

* more rearranging

* fix folder permissions and custom sed for subfolders

* add toga wheels files

* re-add missing file

* mirror latest changes in alpha ci

* fix find cmd

* try different fix for find

* remove redundant build

Co-authored-by: mariana <marianameireles@protonmail.com>
Co-authored-by: pww217 <pwilson@anaconda.com>
Co-authored-by: Fabio Pliger <fabio.pliger@gmail.com>

examples/pylist.py

@@ -0,0 +1,19 @@
+from datetime import datetime as dt
+
+
+class PyItem(PyItemTemplate):
+    def on_click(self, evt=None):
+        self.data["done"] = not self.data["done"]
+        self.strike(self.data["done"])
+
+        self.select("input").element.checked = self.data["done"]
+
+
+class PyList(PyListTemplate):
+    item_class = PyItem
+
+    def add(self, item):
+        if isinstance(item, str):
+            item = {"content": item, "done": False, "created_at": dt.now()}
+
+        super().add(item, labels=["content"], state_key="done")