[MM-26574] Add role filters to get users, users search and add getFilteredUserStats endpoint (#14998)

* MM-26574 Add role filters to user search and get

* Add ability to get filtered user stats

Add support for include bots

* Add tests for user count with filters

Add tests

* Apply changes from code review

* Fix guest filtering

* Fix up tests related to guests

* Clean role names

* Trigger CI

* Trigger CI

model/user_get.go

@@ -24,6 +24,12 @@ type UserGetOptions struct {
 	Active bool
 	// Filters for the given role
 	Role string
+	// Filters for users matching any of the given system wide roles
+	Roles []string
+	// Filters for users matching any of the given channel roles, must be used with InChannelId
+	ChannelRoles []string
+	// Filters for users matching any of the given team roles, must be used with InTeamId
+	TeamRoles []string
 	// Sorting option
 	Sort string
 	// Restrict to search in a list of teams and channels