[Bots] Remove hardcoded race-class combinations from bots. (#1375)

* [Bots] Remove hardcoded race-class combinations from bots.
- Allows server operators to directly influence via a database table the classes a specific bot race can be.
- Previously this was hardcoded and required a source modification to do.
- Allowed races, classes, and genders have been removed due to redundancy at this point.

* Remove const cast and modify saylink definition.

common/ruletypes.h

@@ -563,9 +563,6 @@ RULE_BOOL(Bots, BotGroupXP, false, "Determines whether client gets experience fo
 RULE_BOOL(Bots, BotLevelsWithOwner, false, "Auto-updates spawned bots as owner levels/de-levels (false is original behavior)")
 RULE_INT(Bots, BotCharacterLevel, 0, "If level is greater that value player can spawn bots if BotCharacterLevelEnabled is true")
 RULE_INT(Bots, CasterStopMeleeLevel, 13, "Level at which caster bots stop melee attacks")
-RULE_INT(Bots, AllowedClasses, 0xFFFFFFFF, "Bitmask of allowed bot classes")
-RULE_INT(Bots, AllowedRaces, 0xFFFFFFFF, "Bitmask of allowed bot races")
-RULE_INT(Bots, AllowedGenders, 0x3, "Bitmask of allowed bot genders")
 RULE_BOOL(Bots, AllowOwnerOptionAltCombat, true, "When option is enabled, bots will use an auto-/shared-aggro combat model")
 RULE_BOOL(Bots, AllowOwnerOptionAutoDefend, true, "When option is enabled, bots will defend their owner on enemy aggro")
 RULE_REAL(Bots, LeashDistance, 562500.0f, "Distance a bot is allowed to travel from leash owner before being pulled back (squared value)")

common/version.h

@@ -37,7 +37,7 @@
 #define CURRENT_BINARY_DATABASE_VERSION 9166
 
 #ifdef BOTS
-	#define CURRENT_BINARY_BOTS_DATABASE_VERSION 9027
+	#define CURRENT_BINARY_BOTS_DATABASE_VERSION 9028
 #else
 	#define CURRENT_BINARY_BOTS_DATABASE_VERSION 0 // must be 0
 #endif