message: Update TypeScipt declarations
  Add missing LightManager$Builder methods.
  Fix IcoSphere.tangents type to be unsigned.
  Add missing IcoSphere.suvdivide() method.
diff: @@ -193,11 +193,17 @@ export class RenderTarget$Builder {
  export class LightManager$Builder {
  public build(engine: Engine, entity: Entity): void;
  - public castShadows(value: boolean): LightManager$Builder;
  + public castLight(enable: boolean): LightManager$Builder;
  + public castShadows(enable: boolean): LightManager$Builder;
  public color(rgb: float3): LightManager$Builder;
  public direction(value: float3): LightManager$Builder;
  public intensity(value: number): LightManager$Builder;
  + public falloff(value: number): LightManager$Builder;
  public position(value: float3): LightManager$Builder;
  + public spotLightCone(inner: number, outer: number): LightManager$Builder;
  + public sunAngularRadius(angularRadius: number): LightManager$Builder;
  + public sunHaloFalloff(haloFalloff: number): LightManager$Builder;
  + public sunHaloSize(haloSize: number): LightManager$Builder;
  }
  export class Skybox$Builder {
  @@ -361,8 +367,9 @@ export class IndirectLight$Builder {
  export class IcoSphere {
  constructor(nsubdivs: number);
  + public subdivide(): void;
  vertices: Float32Array;
  - tangents: Uint16Array;
  + tangents: Int16Array;
  triangles: Uint16Array;
  }
  