Mono repo -> Master (#22553)

Combines the following repositories into one:

https://github.com/mattermost/mattermost-server
https://github.com/mattermost/mattermost-webapp
https://github.com/mattermost/focalboard
https://github.com/mattermost/mattermost-plugin-playbooks

server/tests/group-role-has-permission.csv

@@ -0,0 +1,8 @@
+"let p be ""system role has permission""","let q be ""is group member""","let r be ""group role has permission""","""permission granted"" = p ∨ (q ∧ r)"
+TRUE,TRUE,TRUE,TRUE
+TRUE,TRUE,FALSE,TRUE
+TRUE,FALSE,TRUE,TRUE
+TRUE,FALSE,FALSE,TRUE
+FALSE,TRUE,TRUE,TRUE
+FALSE,TRUE,FALSE,FALSE
+FALSE,FALSE,TRUE,FALSE