[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>

zone/groups.h

@@ -62,9 +62,7 @@ public:
 	void	DisbandGroup(bool joinraid = false);
 	void	GetMemberList(std::list<Mob*>& member_list, bool clear_list = true);
 	void	GetClientList(std::list<Client*>& client_list, bool clear_list = true);
-#ifdef BOTS
 	void	GetBotList(std::list<Bot*>& bot_list, bool clear_list = true);
-#endif
 	bool	IsGroupMember(Mob* c);
 	bool	IsGroupMember(const char* name);
 	bool	Process();