dismantle layer headers

No more monolithic includes: split layers into their own headers for modular inclusion and build.

Makefile

@@ -78,7 +78,7 @@ NONEMPTY_LINT_REPORT := $(BUILD_DIR)/$(LINT_EXT)
 # PY$(PROJECT)_SRC is the python wrapper for $(PROJECT)
 PY$(PROJECT)_SRC := python/$(PROJECT)/_$(PROJECT).cpp
 PY$(PROJECT)_SO := python/$(PROJECT)/_$(PROJECT).so
-PY$(PROJECT)_HXX := include/$(PROJECT)/python_layer.hpp
+PY$(PROJECT)_HXX := include/$(PROJECT)/layers/python_layer.hpp
 # MAT$(PROJECT)_SRC is the mex entrance point of matlab package for $(PROJECT)
 MAT$(PROJECT)_SRC := matlab/+$(PROJECT)/private/$(PROJECT)_.cpp
 ifneq ($(MATLAB_DIR),)

include/caffe/caffe.hpp

@@ -17,6 +17,5 @@
 #include "caffe/util/benchmark.hpp"
 #include "caffe/util/io.hpp"
 #include "caffe/util/upgrade_proto.hpp"
-#include "caffe/vision_layers.hpp"
 
 #endif  // CAFFE_CAFFE_HPP_