[WIP] Character posture

[ghost]

Feature description

Modification of character posture. It should consider the current character pose, bones rotation, and character facing.

Solution description

For posture percentage was added simple numberslider, and posture changes were moved to character object so that UI doesn't know anything about changing of posture, and only character object is responsible for that.

Area affected and ensured

Mostly character component is affected, used fully update skeleton methods in order to save the changed skeleton

Task

• Skeleton alteration with preservation of rotation
• Posture component which translates slider info and resets value if needed
• Good and bad posture presets @setpixel

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