More Meters

 - Added visual meter to show how long you need to hold up (doors, checkpoints, signs).
 - Added different sprite to dropping platforms.
 - Added settings toggle for saved memories.
 - Added YOLO to not have checkpoints.
 - Added notice to "First Leap" level to instruct players to hold up to look up.
 - Added dead enemies to turn a different shade before they explode, so you know they're dead.
 - Modified default health bar to have 10 visuals instead of 6, since the player has 100 health and takes damage by 10.