rbx_dom_weak integration to premake places

[Kampfkarren]

My code relies on a lot of instances existing that would in the normal place, but need to be manually instantiated in Lemur. Would be cool to mix lemur with rbx_dom_weak to load entire places (or better yet, Rojo directories) to make this easy.

[LPGhatguy]

I'm not sure if rbx_dom_weak is the right level of integration here unless we reposition Lemur as a native library with Lua bindings.

What we could do is implement the Rojo project format in Lua, tie that together with the Rojo plugin, and then run the Rojo plugin in the Lemur habitat. That would let us effectively hydrate a Lemur-Roblox place from a Rojo project file!