[Bots] Cleanup and remove preprocessors. (#2757)

* [Bots] Cleanup and remove preprocessors.

- Removes every `#ifdef BOTS` we have and locks bots behind `Bots:AllowBots` rule.
- Bot updates are now done by default similar to regular database updates.
- Modify `CMakeLists.txt`, `.drone.yml`, and `BUILD.md` to match the removal of `EQEMU_ENABLE_BOTS`.

* Cleanup

- Add SQL for enabling bots for servers with bots.
- Add message that tells players/operators bots are disabled.

* Suggested changes.

* Bot injection stuff

* Change SQL to bot SQL.

* Tweaks

* Remove `is_bot`

* Update version.h

* Update main.cpp

* Update database.cpp

* Fix name availability crash

* Remove bots from update script

Co-authored-by: Akkadius <akkadius1@gmail.com>

common/ruletypes.h

@@ -585,9 +585,8 @@ RULE_INT(Range, CriticalDamage, 80, "The packet range in which critical hit mess
 RULE_INT(Range, MobCloseScanDistance, 600, "Close scan distance")
 RULE_CATEGORY_END()
 
-
-#ifdef BOTS
 RULE_CATEGORY(Bots)
+RULE_BOOL(Bots, Enabled, false, "Enable of disable bot functionality, default is false")
 RULE_INT(Bots, BotExpansionSettings, 16383, "Sets the expansion settings for bot use. Defaults to all expansions enabled up to TSS")
 RULE_BOOL(Bots, AllowCamelCaseNames, false, "Allows the use of 'MyBot' type names")
 RULE_BOOL(Bots, AllowBotEquipAnyRaceGear, false, "Allows Bots to wear Equipment even if their race is not valid")
@@ -616,7 +615,6 @@ RULE_BOOL(Bots, ResurrectionSickness, true, "Use Resurrection Sickness based on
 RULE_INT(Bots, OldResurrectionSicknessSpell, 757, "757 is Default Old Resurrection Sickness Spell")
 RULE_INT(Bots, ResurrectionSicknessSpell, 756, "756 is Default Resurrection Sickness Spell")
 RULE_CATEGORY_END()
-#endif
 
 RULE_CATEGORY(Chat)
 RULE_BOOL(Chat, ServerWideOOC, true, "Enable server wide ooc-chat")