Setup terraform structure for connector dev infra for GCP and AWS (#4641)

* setup GCP terraform structure for connector dev infra

* fxes

* Created aws terraform bootstrap infrastructure

* Corrected path for S3 state file

* Creating ssh tunnel testing infrastructure

* Creating a bastion host

* Docs

* Created bastion host with airbyte unprivileged account for tunneling

* Added yum updates

* Create a private subnet and a postgres database within it

* Identifier for db

* Create postgres and bastion within a module.

* Set up postgres infrastructure

* Don't need this terraform wrapper when we run with tfenv

* Dropped incomplete WIP from GCP setup for this PR.

* Touchups to how to use terraform

* Updated to resolve merge conflict

* More separated top level structure to avoid monorepo problems with terraform destroy.

* Clarifying directory structure

* Migrated directory structure for testing infrastructure

Co-authored-by: Jenny Brown <jenny@airbyte.io>

airbyte-integrations/infrastructure/ssh_tunnel/module/sql/postgresql-01-dbcreate.sql

@@ -0,0 +1,55 @@
+-- generic setup for a brand new empty postgresql RDS
+ CREATE
+    ROLE integrationtest_rw;
+
+GRANT integrationtest_rw TO airbyte;
+
+CREATE
+    DATABASE test OWNER integrationtest_rw;
+
+GRANT CONNECT ON
+DATABASE test TO integrationtest_rw;
+
+CREATE
+    SCHEMA integrationtest AUTHORIZATION integrationtest_rw;
+
+GRANT USAGE,
+CREATE
+    ON
+    SCHEMA integrationtest TO integrationtest_rw;
+
+GRANT SELECT
+    ,
+    INSERT
+        ,
+        UPDATE
+            ,
+            DELETE
+                ON
+                ALL TABLES IN SCHEMA integrationtest TO integrationtest_rw;
+
+ALTER DEFAULT PRIVILEGES IN SCHEMA integrationtest GRANT SELECT
+    ,
+    INSERT
+        ,
+        UPDATE
+            ,
+            DELETE
+                ON
+                TABLES TO integrationtest_rw;
+
+GRANT USAGE ON
+ALL SEQUENCES IN SCHEMA integrationtest TO integrationtest_rw;
+
+ALTER DEFAULT PRIVILEGES IN SCHEMA integrationtest GRANT USAGE ON
+SEQUENCES TO integrationtest_rw;
+
+REVOKE ALL ON
+database template1
+FROM
+public;
+
+REVOKE ALL ON
+database postgres
+FROM
+public;