Add space to JSDoc attributes

Fix problem switching from Uint16 to Uint32 indices for outlining.

Point cloud styling fixes

Added frustumSplits option to DebugCameraPrimitive

Simplify skinning to always expect VEC4 joint/weight accessors.

…m_depthClampFarPlane to czm_depthClamp

I was modifying gulpfile in another branch and realized formatting was
not set up correctly.

…m ray ellipsoid intersection

…sible surfaces

…; Adding tests for Transforms.rotationMatrixFromPositionVelocity

…romPositionVelocity to CHANGES.md

…city tests

Two small JSDoc/TS fixes

We were including all Cesium directories in the TypeScript smokescreen
configuration. This meant that multiple Cesium.d.ts files were included
if you did a full build and then ran `build-ts` afterwards. This updates
the config used by the smokescreen to only include Source.

Fix for Node 14 Gulp Build issue

Exposing Transforms.rotationMatrixFromPositionVelocity

Add some missing readonly documentation tags

change cesiumScriptRegex value

Only include Source folder in TypeScript smokescreen tests.

Expose buildModuleUrl as part of the Cesium API

None of the `XXXGeometry` classes are actually `Geometry` instances. They
are instead utility classes that create geometries via their
`createGeometry` implementation. `GeometryInstance` can take either "type"
but since JS doesn't have types we never really defined what the "utility"
type is, so the TypeScript definition for `GeometryInstance` specifies that
currently only specifies `Geometry`. This means that this valid JS code
is a compiler error in TypeScript

```
const geometryInstance = new GeometryInstance({
  geometry: new PolylineGeometry({
    positions: [],
  }),
});
```

To fix this, I introduced a `GeometryFactory` base class like we have
elsewhere in the code and changed `GeometryInstance` to take either type.
This is the only place where we actually base "non-geometry Geometry" in
the API.

Happy to consider other names, like `GeometryCreator` if we don't like
factory for some reason, but I want to get this in sooner rather than
later for 1.70.1 fixes.

Also fixed an issue with tsconfig.json I introduced in my last change
which was failing to actually catch TS compile errors because it wasn't
including the Cesium.d.ts.

Fix geometry creation in TypeScript