[MM-31094] Replication Lag (#16888)

* MM-31094: Adds tooling to develop and test using a MySQL instance with replication lag. Adds some lazy lookups to fallback to master if results are not found.

* MM-31094: Removes mysql-read-replica from default docker services.

* MM-31094: Switches (store..SessionStore).Get and (store.TeamStore).GetMember to using context.Context.

* MM-31094: Updates (store.UsersStore).Get to use context.

* MM-31094: Updates (store.PostStore).Get to use context.

* MM-31094: Removes feature flag and config setting.

* MM-31094: Rolls back some master reads.

* MM-31094: Rolls a non-cache read.

* MM-31094: Removes feature flag from the store.

* MM-31094: Removes unused constant and struct field.

* MM-31094: Removes some old feature flag references.

* MM-31094: Fixes some tests.

* MM-31094: App layers fix.

* MM-31094: Fixes mocks.

* MM-31094: Don't reparse flag.

* MM-31094: No reparse.

* MM-31094: Removed unused FeatureFlags field.

* MM-31094: Removes unnecessary feature flags variable declarations.

* MM-31094: Fixes copy-paste error.

* MM-31094: Fixes logical error.

* MM-30194: Removes test method from store.

* Revert "MM-30194: Removes test method from store."

This reverts commit d5a6e8529bd5f4d993824c828e239d009b05e567.

* MM-31094: Conforming to make's strange syntax.

* MM-31094: Configures helper for read replica with option.

* MM-31094: Adds some missing ctx's.

* MM-31094: WIP

* MM-31094: Updates test names.

* MM-31094: WIP

* MM-31094: Removes unnecessary master reads.

* MM-31094: ID case changes out of scope.

* MM-31094: Removes unused context.

* MM-31094: Switches to a helper. Removes some var naming changes. Fixes a merge error.

* MM-31094: Removes SQLITE db driver ref.

* MM-31094: Layer generate fix.

* MM-31094: Removes unnecessary changes.

* MM-31094: Moves test method.

* MM-31094: Re-add previous fix.

* MM-31094: Removes make command for dev.

* MM-31094: Fix for login.

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

tests/test-data.ldif

@@ -129,6 +129,22 @@ cn: Board3
 mail: success+boardthree@simulator.amazonses.com
 userPassword: Password1
 
+dn: uid=firstloginuser.one,ou=testusers,dc=mm,dc=test,dc=com
+changetype: add
+objectclass: iNetOrgPerson
+sn: User
+cn: FirstLogin1
+mail: success+firstloginuser.one@simulator.amazonses.com
+userPassword: Password1
+
+dn: uid=firstloginuser.two,ou=testusers,dc=mm,dc=test,dc=com
+changetype: add
+objectclass: iNetOrgPerson
+sn: User
+cn: FirstLogin2
+mail: success+firstloginuser.two@simulator.amazonses.com
+userPassword: Password1
+
 dn: ou=testgroups,dc=mm,dc=test,dc=com
 changetype: add
 objectclass: organizationalunit
@@ -209,4 +225,10 @@ changetype: add
 objectclass: groupOfUniqueNames
 uniqueMember: uid=dev-ops.one,ou=testusers,dc=mm,dc=test,dc=com
 uniqueMember: cn=team-one,ou=testgroups,dc=mm,dc=test,dc=com
-uniqueMember: cn=team-two,ou=testgroups,dc=mm,dc=test,dc=com
+uniqueMember: cn=team-two,ou=testgroups,dc=mm,dc=test,dc=com
+
+dn: cn=firstlogingroup,ou=testgroups,dc=mm,dc=test,dc=com
+changetype: add
+objectclass: groupOfUniqueNames
+uniqueMember: uid=firstloginuser.one,ou=testusers,dc=mm,dc=test,dc=com
+uniqueMember: uid=firstloginuser.two,ou=testusers,dc=mm,dc=test,dc=com