Plugin System

[TheJoeSmo]

Is your feature request related to a problem? Please describe.
At the current time it is impossible to have a specific installation of a feature. For example, Foundry has gone back and forth on the overlay for items inside block. If the user could choose their favorite implementation of a feature, then there would be no need to continue to go back and forth, instead the user decides.

Describe the solution you'd like
The solution I propose is a plugin system. A plugin system provides easy scalability and integration with the Settings class that already handles settings. Furthermore, a plugin system can be extended to the disassembly to allow for patches and large scale patches in the future.

Describe alternatives you've considered
An alternative would be simply using the python's built in import system. The main flaw with this system is the lack of ability to dynamically call different plugins. This makes it very hard for the user to add an alternative easily. It also forces the user to directly change source code which is unideal.