refactor loading and implement unions

lib/bsp_loader/src/lib.rs

@@ -62,7 +62,7 @@ impl Bsp{
 	pub const fn new(value:vbsp::Bsp)->Self{
 		Self(value)
 	}
-	pub fn to_snf(&self,failure_mode:LoadFailureMode)->Result<strafesnet_common::map::CompleteMap,LoadError>{
+	pub fn to_snf(&self,failure_mode:LoadFailureMode,vpk_list:&[vpk::VPK])->Result<strafesnet_common::map::CompleteMap,LoadError>{
 		let mut texture_deferred_loader=RenderConfigDeferredLoader::new();
 		let mut mesh_deferred_loader=MeshDeferredLoader::new();
 
@@ -72,7 +72,7 @@ impl Bsp{
 			&mut mesh_deferred_loader,
 		);
 
-		let mut mesh_loader=loader::MeshLoader::new(self,&mut texture_deferred_loader);
+		let mut mesh_loader=loader::MeshLoader::new(loader::BspFinder{bsp:self,vpks:vpk_list},&mut texture_deferred_loader);
 		let prop_meshes=mesh_deferred_loader.into_meshes(&mut mesh_loader,failure_mode).map_err(LoadError::Mesh)?;
 
 		let map_step2=map_step1.add_prop_meshes(prop_meshes);