Logger

[Maks1116]

TODO list:

• [x] Logging levels
• [x] Colors
  • [ ] Disable colors when environment doesn't support them
• [x] Logging to file

[TheRealOne78]

27261d1 - I am not entirely sure whether the new build and libs directories work, but it's a starting point...

Still need to figure out how to make cmake compile and link all source files correctly. If you compile them manually, it works! (See image below)

But I am not even a begginer in CMake, so I'll either leave this to someone else, or figure it out later.