inching slowly towards a renderer

src/core/CMakeLists.txt

@@ -2,6 +2,7 @@
 set(hdrs
     include/pw/core/debug.hpp
     include/pw/core/axisangle.hpp
+#	include/pw/core/buffer.hpp
     include/pw/core/core.hpp
     include/pw/core/math.hpp
     include/pw/core/matrixbase.hpp
@@ -13,12 +14,15 @@ set(hdrs
     include/pw/core/point.hpp
     include/pw/core/size.hpp
     include/pw/core/timer.hpp
+	include/pw/core/mesh.hpp
     include/pw/core/globals.hpp
     )
 
 set(srcs
+	src/buffer.cpp
     src/image.cpp
     src/debug.cpp
+	src/mesh.cpp
     src/core.cpp
     src/serialize.cpp
     src/timer.cpp