RLDR Version 0.2.0 Release Candidate 2

Hey folks! Another Public build, i think final 0.2.0 release after this, though i may do another, i like adding stuff to the game and making it as polished as i can.

Changes from last dev build:

-Corrected some incorrectly configured mania IDs

-Added new mania

Changes from last Release Candidate:

-Added credits screen finally

-Added two new music tracks

-Fixed some minor bugs

-Version number is now displayed in some places

And the changes listed above from the last dev build.