add interactible object permisisons

[mwfarb]

Given the new topic refactor, we have the chance to define some objects as globally posable/interactable. In this case we would allow those objects to have their position and rotation changed by any user, maybe not anonymous users. So we might have "box" defined on "o" which all attributes can only be changed by writers/owners, and then have "box" defined on "i" in which only position/rotation are obeyed, not scale, color, etc..., by any normal user.

@hi-liang @nampereira Let me know what you think of this.