VariDungeon 0.5.0: The End is near

This update features global balance, game structure and comfort changes :
- the merchant is now between the 2nd and 3rd floors and the 4th and final boss floors

- death animation
- visual indication for the enemies attacks, screen shake and more XP drops

- better character selection screen and character change available in the hub

- score and time menu at the end of a run
- new end game : boss rush floor and super final boss after the final boss

- boss and enemies balance
- french translation
- bonus system corrected : max level is 3 and no more useless items available when using a certain build
- new rooms available in every biome (level 1 and 2)
- new achievements
- and more