v2.1.1

Bugfix patch:

• Fix copying components with unempty modules 7ea5865 (@sasha240100)
• Fix built type of Camera and Mesh component classes b945cb1 (@hirako2000)
• Fix Line component. curve parameter 2fb6398 (@sasha240100)
• Fix Loop error: process.hrtime (Removed in polyfill, because of mrdoob/three.js#10732) 863a61a (@sasha240100)
• Package version from whs in modules f9f388a (@sasha240100)