0.5, Life, Death and Pauses in between

New update for Danger Below ! This one implements mostly visual effects (I may had a little too much fun on this), and a few other improvements. We're getting closer and closer to the 1.0, and I am really excited about it !

Added:
- Weapons destruction visual effects
- Damages visual effects
- Enemy death visual effects
- Pause menu
- Replay button in game over screen
- Half-hearts
- Spears and nailed bats can be looted by monsters and used by the player
- Healing item

Fixed:
- Weapons deck UI update bugs
- Crash when looting a weapon empty handed
- Player could move during some endgame screens