cleanup
[CT-16] Refactor logos, added music service for menu
[CT-17] Added comments
[CT-18] Created music and preferences manager for music and sound service. Refactored some moments.
[CT-19] Created simple LRU Cache, some fixes with getting internal files
[CT-20] minor fix to [CT-19]
[CT-21] Changed music theme, OLOLO
Merge pull request #2 from Power-Pill/vadim

Merge vadim branch
[CT-16] Added stubs
[CT-16] Added stubs -2