Setting handlers, only if it is required by plugins

[em92]

For example:

1. we have accepted PR with new damage hook https://github.com/MinoMino/minqlx/pull/120
2. QLDS server does not use plugin, which uses introduced "damage" hook.
3. minqlx.register_handler("damage", handle_damage) is executed from PR above.

When damage is registered QLDS runs python code around handle_damage and https://github.com/MinoMino/minqlx/blob/390d6c11ec15c2df060765a7416f64f6d0eebfd3/python/minqlx/_events.py#L41-L98, which wastes extra CPU time and clearly does not do anything useful.

So it would be better, if minqlx.register_handler("damage", handle_damage) only if plugin or minqlx itself requires it.

That also concerns to other hooks below, but comparing to damage hook, they are executed less frequently

• player_connect
• player_loaded
• player_disconnect
• player_spawn
• kamikaze_use
• kamikaze_explode

[mgaertne]

Hmmmm, that should be possible by modifying the last_init method, and plugin_load mechanism, and modifying add_hook in the plugin class to register the handler for the given hook.

[mgaertne]

Note that I also added the handle_frame event which is called once per server frame, i.e. 40 times per second on default server settings to your list of events that maybe should be hot pluggable.