Armor Poser

Rework of the posing screen

• Added a button to toggle showing the name of the armor stand
• Added a new row of positions which can be used to nudge the armor stand (By the Y position is locked unless gravity is disabled)
• Added tooltips to all fields/buttons
• Added a button that shows a list of default poses that can be applied to the armor stand
• Added a Mirror Pose button
• Added a Mirror Arms button
• Added a Mirror Legs button
• Added a button to swap the item in the main and off-hand
• Added a button to swap the item in the main head with the head slot
• Fix a crash from 2.1.0 that prevented the game from working properly