Support setState and getState of Vector2, Vector3 and Quaternion

[asadm]

I should be able to SetState("pos", new Vector3(3.3f, 4.0f, 5.0f)); in both global and player states.

Also, trim all x,y,z and x,y,z,w floats to 4 decimals so they dont consume too much network bandwidth to transmit ie:

string floatToString(float f){
  return f.ToString("0.000");
}

[asadm]

Actually on a second thought, I think we can put these snippets in docs instead of core API.

[SaadBazaz]

We can add the trimming in docs, but for Vector etc we should add an overload func so that intellisense can work.

[asadm]

No let's keep API as-is and provide these helper snippets (to serialize Vector3 to string) in docs. I will do it.

[SaadBazaz]

Makes sense, will be consistent with other SDKs.

[SaadBazaz]

Closing this as marked as completed by #36 . Feel free to reopen otherwise.