refactor and continue the configuration loader (malbox-config)

[shard77]

there's probably better ways of unifying the configuration components (currently it's kind of messy, maybe using generics and boxing the entire config, the goal is the have less external matches to do), some configuration elements are also missing / incomplete (for example there's no configuration for analysis/modules/plugins because this hasn't been defined yet)

[shard77]

Made major changes in #27 concerning the configuration loader and configuration structure.

Keeping this issue open as the loader isn't perfect, and the configuration structure may only be temporary / is exposed to significant changes depending on other parts of the project.