message: added Transform.identity
diff: @@ -1724,6 +1724,7 @@ export class Transform implements BeJSONFunctions {
  // Constructor accepts and uses POINTER to content .. no copy here.
  private constructor(origin: XYZ, matrix: RotMatrix) { this._origin = origin; this._matrix = matrix; }
  + public static readonly identity = Transform.createIdentity();
  public freeze() { Object.freeze(this); Object.freeze(this._origin); this._matrix.freeze(); }
  public setFrom(other: Transform) { this._origin.setFrom(other._origin), this._matrix.setFrom(other._matrix); }
  /** Set this Transform to be an identity. */
  @@ -2126,5 +2127,7 @@ export class Transform implements BeJSONFunctions {
  Transform.createOriginAndMatrix(origin, rMatrix, globalToNpc);
  }
  }
  +}
  -} // endClass Transform
  +Transform.identity.freeze();
  +RotMatrix.identity.freeze();
  