Function for editing local entity state without sending entity edit packets

[ada-tv]

This would allow for smooth animations and smooth editing without spamming edit packets to the server and clogging up the reliable packet queue.

Proposed API:

namespace Entities {
  /**
  * Modifies the client-local state of an entity without editing its server-side state.
  * @returns {Uuid} Uuid.NULL if the edit was unsuccessful
  */
  function editEntityLocal(entity: Uuid, props: EntityProperties): Uuid;

  /**
  * Sends the client-local state of an entity to the entity server.
  * @returns {Uuid} Uuid.NULL if the edit was unsuccessful
  */
  function syncToServer(entity: Uuid): Uuid;

  /**
  * Resets the client-local state of an entity to its state on the entity server.
  * @returns {Uuid} Uuid.NULL if the edit was unsuccessful
  */
  function syncToClient(entity: Uuid): Uuid;
}

[JulianGro]

Good example is the color picker, where you have to wait for it to go through all the color updates before seeing the color you stopped at.