Update notes for EA-20220502

GAMEPLAY

• Added local co-op (still needs some work)
• When a follower character attacks due to a whistle they will now attack in the direction the leader is facing

ART

• improved hammer and sickle art for increased readability

OTHER

• fixed attract mode
• added tutorial signs to the first 2 levels
• in the level editor, when drawing on the "World" layer collision tiles will now be auto-added