CBA based features implemention / Refactoring / Code cleanup

[veteran29]

Short Summary

Move existing functionalities to CBA where applicable.
Refactor existing code base if needed.

Description

As we want to streamline further development by using CBA we need to refactor existing features to be based on CBA functions where applicable.

Also as the code base is steadily growing we need to take a small step back and take a look at the whole project to check if any parts of the code will not slow down further development.

Sub-Tasks

• Replace KP Events
• Move persistent loops to unscheduled (where applicable, have performance in mind)
• Refactor Action Manager
• Replace custom "namespaces" implementation

[Wyqer]

Something should be done in the following scripts to ensure the functionality, but get rid of all these old waitUntil !isNil, etc. stuff.

https://github.com/KillahPotatoes/KP-Liberation/blob/v0.97S4/Missionframework/init.sqf#L14-L21
https://github.com/KillahPotatoes/KP-Liberation/blob/v0.97S4/Missionframework/initPlayerLocal.sqf#L16-L19
https://github.com/KillahPotatoes/KP-Liberation/blob/v0.97S4/Missionframework/onPlayerRespawn.sqf#L14-L17
https://github.com/KillahPotatoes/KP-Liberation/blob/v0.97S4/Missionframework/modules/01_core/fnc/fn_core_intro.sqf

And the intro cinematic itself could really need a further refactoring in the near future, I guess:
https://github.com/KillahPotatoes/KP-Liberation/blob/v0.97S4/Missionframework/modules/01_core/fnc/fn_core_cinematic.sqf