Add wrong surface warnings to NavigationMesh.create_from_mesh()
Add wrong surface warnings to NavigationMesh.create_from_mesh()

Adds warnings when at least one of the input mesh surfaces is of wrong primitive type or has an empty vertex / index array as those broken input meshes would fail as both navmesh as well as later when creating debug meshes.

ZuBsPaCe/godot,Zylann/godot,guilhermefelipecgs/godot,Zylann/godot,pkowal1982/godot,josempans/godot,ZuBsPaCe/godot,akien-mga/godot,guilhermefelipecgs/godot,firefly2442/godot,josempans/godot,guilhermefelipecgs/godot,Zylann/godot,BastiaanOlij/godot,Valentactive/godot,Shockblast/godot,pkowal1982/godot,Valentactive/godot,Shockblast/godot,josempans/godot,Valentactive/godot,akien-mga/godot,Zylann/godot,firefly2442/godot,sanikoyes/godot,godotengine/godot,sanikoyes/godot,Valentactive/godot,godotengine/godot,akien-mga/godot,vkbsb/godot,sanikoyes/godot,BastiaanOlij/godot,akien-mga/godot,Valentactive/godot,firefly2442/godot,Shockblast/godot,BastiaanOlij/godot,Shockblast/godot,firefly2442/godot,BastiaanOlij/godot,guilhermefelipecgs/godot,godotengine/godot,josempans/godot,sanikoyes/godot,ZuBsPaCe/godot,pkowal1982/godot,guilhermefelipecgs/godot,vkbsb/godot,BastiaanOlij/godot,BastiaanOlij/godot,sanikoyes/godot,sanikoyes/godot,godotengine/godot,ZuBsPaCe/godot,sanikoyes/godot,pkowal1982/godot,akien-mga/godot,vkbsb/godot,pkowal1982/godot,guilhermefelipecgs/godot,pkowal1982/godot,guilhermefelipecgs/godot,sanikoyes/godot,Shockblast/godot,godotengine/godot,ZuBsPaCe/godot,pkowal1982/godot,Valentactive/godot,vkbsb/godot,ZuBsPaCe/godot,godotengine/godot,pkowal1982/godot,vkbsb/godot,Valentactive/godot,BastiaanOlij/godot,vkbsb/godot,firefly2442/godot,firefly2442/godot,godotengine/godot,guilhermefelipecgs/godot,josempans/godot,Shockblast/godot,Shockblast/godot,BastiaanOlij/godot,akien-mga/godot,akien-mga/godot,josempans/godot,firefly2442/godot,Shockblast/godot,vkbsb/godot,Zylann/godot,firefly2442/godot,Zylann/godot,ZuBsPaCe/godot,ZuBsPaCe/godot,josempans/godot,Valentactive/godot,josempans/godot,Zylann/godot,vkbsb/godot,godotengine/godot,akien-mga/godot,Zylann/godot