Add basic functionality:

[PigsGoMoo]

• Players:
• • Player can move
• • Player can shoot
• • Player can die
• • Players can progress to different scenes/levels
• • Players can upgrade themselves
• Enemies:
• • Enemies can track
• • Enemies can attack
• • Enemies can die

[PigsGoMoo]

Players can now die, leading to a game over scene.

Enemies can now attack and die, as well.

[PigsGoMoo]

Added player upgrade system. Need to implement the workshop to access (so for now, it can be accessed with hotkey: U).