extra text formatting options

[robtfm]

features

• support <s>, <u> and <mark> in UiText and TextShape
• add spawn/kill portable commands

bugfixes

• pointer events are no longer blocked by CL_PHYSICS colliders
• missing audios are removed to avoid warning spam
• animations now replay if playing=true and they are playing but finished
• match foundation client UV calculations for MeshRenderer plane, box, sphere and cylinder shapes
• fix missing snapshots for guest profiles

misc

• add social service tests
• increased default fov (todo - make configurable)
• bump dcl-rpc and async-tungestenite to remove DoS vuln