[Commands] Add #findfaction Command. (#1697)

- Add #findfaction [search criteria] command.
- Cleanup other #find command messages/logic.
- Add GetMaxFaction() helper method.
- Add races.h defines for races 725-732.

common/races.h

@@ -1603,6 +1603,14 @@ namespace PlayerAppearance
 #define RACE_FALLEN_KNIGHT_722 722
 #define RACE_SERVANT_OF_SHADOW_723 723
 #define RACE_LUCLIN_724 724
+#define RACE_XARIC_725 725
+#define RACE_DERVISH_726 726
+#define RACE_DERVISH_727 727
+#define RACE_LUCLIN_728 728
+#define RACE_LUCLIN_729 729
+#define RACE_ORB_730 730
+#define RACE_LUCLIN_731 731
+#define RACE_PEGASUS_732 732
 #define RACE_INTERACTIVE_OBJECT_2250 2250
 
 #endif