Experimental/less lossy vector hand

[MattGrayUL]

Summary

Adds encoding option to VectorHands which uses byte[] rather than byte to produce more stable vector hands at the cost of additional data

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• [ ] Pair review with a member of the QA team.
• [x] Add any release testing considerations to the MR for the next release.
• [x] Check any relevant CHANGELOG files have been updated.
• [x] Ensure documentation requirements are met e.g., public API is commented.
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• [ ] Code reviewed.
• [ ] Non-code assets e.g. Unity assets/scenes reviewed.
• [ ] Documentation has been reviewed. Includes checking documentation requirements are met and not missing e.g., public API is commented.
• [ ] Checked and agree with release testing considerations added to MR for the next release.

Closes JIRA Issue

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