- Humanoid is optional
- Properties of HumanoidHumanBones are optional
    - Some bones are required but that would be handled in the implementation side
    - I also fixed the `VRMC_vrm` one

See: https://github.com/vrm-c/vrm-specification/blob/2d40293a5aa21f1a5011d7a53074056bd31cbad3/specification/VRMC_vrm_animation-1.0/schema/VRMC_vrm_animation.schema.json
See: https://github.com/vrm-c/vrm-specification/blob/2d40293a5aa21f1a5011d7a53074056bd31cbad3/specification/VRMC_vrm_animation-1.0/schema/VRMC_vrm_animation.humanoid.humanBones.schema.json

it attempts to use humanoid even when it doesn't exist

…e-vrm to latest

fix: Fix type definition of VRM Animation

fix: Fix license year of three-vrm-animation

fix: Fix internal dependency version from three-vrm-animation to three-vrm to latest

There is a lot of build errors right now
It seems most of them come from the change that @types/three no longer expose THREE to global (and I somehow forgot to import in many files!)

the test.vrma didn't have a specVersion and couldn't be played properly

Bump Three.js to r162

examples: fix test.vrma