v0.4.991 - Skill progression

Hello!

Today we add a bit of progression for new players: skills will only be accessible if you level up your profile!
- Speed: Unlock when you start the game
- Dive: Unlock at level 2
- Smoke: Unlock at level 4
- Decoy : Unlock at level 6
- Stun: Unlock at level 8
- Grapple: Unlock at level 10

Thank you for your support!