Add Animations to the backpack

[olavra]

The avatar will now reproduce different animations when changing the wearables. Those animations are related to:

• Upper body wearables
• Lower body wearables
• Foot wearables
• Accessories

After a successful change, the avatar will reproduce another animation in world as the 3D model swaps. This will be visible by other players.

https://app.zenhub.com/files/337227404/926f0247-8307-48bf-9e5b-dd1a053d82dc/download

Acceptance Criteria

• [x] Corresponding animation plays in backpack when changing wearables
• [x] Another animation plays in world after change

[dalkia]

Reference placeholder animations sent by Shibu and Isa https://app.zenhub.com/files/337227404/f4819ffb-7bbf-4529-a8b9-4c3371fedfe4/download