Added Google Messager Bridge (#2794)

* intial commit

* changed

* Reorderd

* merge old changes

* added changes to matrix_servers

* Remove duplicate discord

* Update main.yml

* added google message to configuring-playbook.md

* Changed docs to add new changes

* Changed bug?

* Removed problem j2 values

* Rename a service files

* change how password hash string

* Changed port number

* Change how the local part works

* Revert "Merge pull request #8 from shreyasajj/wsproxy"

This reverts commit bb1b8fc67ca39f63ca77e70077be99cb2b32c4de, reversing
changes made to cce6ba5f9d74f89172488afc8b1ef124031de8c1.

---------

Co-authored-by: Shreyas Ajjarapu <github.tzarina@aleeas.com>

roles/custom/matrix-bridge-mautrix-gmessages/tasks/validate_config.yml

@@ -0,0 +1,20 @@
+---
+
+- name: Fail if required mautrix-gmessages settings not defined
+  ansible.builtin.fail:
+    msg: >-
+      You need to define a required configuration setting (`{{ item.name }}`).
+  when: "item.when | bool and vars[item.name] == ''"
+  with_items:
+    - {'name': 'matrix_mautrix_gmessages_appservice_token', when: true}
+    - {'name': 'matrix_mautrix_gmessages_homeserver_token', when: true}
+    - {'name': 'matrix_mautrix_gmessages_database_hostname', when: "{{ matrix_mautrix_gmessages_database_engine == 'postgres' }}"}
+
+- name: (Deprecation) Catch and report renamed settings
+  ansible.builtin.fail:
+    msg: >-
+      Your configuration contains a variable, which now has a different name.
+      Please change your configuration to rename the variable (`{{ item.old }}` -> `{{ item.new }}`).
+  when: "item.old in vars"
+  with_items:
+    - {'old': 'matrix_mautrix_gmessages_log_level', 'new': 'matrix_mautrix_gmessages_logging_level'}