ISpooferMotion v2.5.11

Fix Content-property patch silent no-op + v2.5.11

Patch side now handles every known asset property by name in addition
to reading current-value type, so a Content property whose readback
errors or whose Content.fromUri isn't available no longer falls
through to a raw digit assignment that Studio silently rejects.

- coercePropertyValue: property-name lookup maps for CONTENT_PROPERTIES
  and NUMBER_ASSET_PROPERTIES cover the readback-fails case. Content
  values tried via Content.fromUri -> Content.new -> raw URI string in
  that order, so older Studio builds still succeed.
- Also handles HumanoidDescription body parts + PackageLink fields
  explicitly (int64 not Content).
- version bump 2.5.10 -> 2.5.11, changelog written in the usual voice.