* Valve220: use face projection by default

* Valve220: Project {axial, ortho, cam, from face} functions
	* conversions between AP, BP and Valve220 brush types; conversions to Brush Primitives and Valve220 formats are lossless
	* detect brush format and automatically convert to current one on map Import and Paste
	* Valve220: fixed Reset function, implemented Rotate one
	* Valve220: fix overwriting basis on brush clone/map import ( in Face( Face ) constructor )
	* BP: fix: normalize shift values during import, arbitrary projections and face->fit
	* Valve220: fix texture lock for scaling, fix for negative texdef.scale

radiant/brushmodule.cpp

@@ -209,9 +209,12 @@ public:
 scene::Node& createBrush(){
 	return ( new BrushNode )->node();
 }
-EBrushType getCurrentFormat() const {
+EBrushType getFormat() const {
 	return Brush::m_type;
 }
+void toggleFormat( EBrushType type ) const {
+	Brush_toggleFormat( type );
+}
 void Brush_forEachFace( scene::Node& brush, const BrushFaceDataCallback& callback ){
 	::Brush_forEachFace( *Node_getBrush( brush ), FaceCallback( BrushFaceDataFromFaceCaller( callback ) ) );
 }