* Previous implementation relied on icon and icon_state at compile time.
* This prevented GMs from editing icon_state, as it always reverted to defaults when scanned
* GMs can now edit real_icon using var edit->E "Icon" to use non-standard icon_states
* GMs can now edit real_icon_state to choose specific state as a simple text var type edit
* GMs can call a proc called gmtools_update_omobject_vars(setToHidden) with an argument that forces known locations to become unknown again with an arg of "1"
* If GM uses arg of 0, proc simply changes how pilots inside the sector see their own ship by updating real_appearance with real_icon_state
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