Memmap: Re-organize memory function in two files

memory.cpp/h contains definitions related to acessing memory and
configuring the address space
mem_map.cpp/h contains higher-level definitions related to configuring
the address space accoording to the kernel and allocating memory.

src/citra_qt/debugger/ramview.cpp

@@ -4,8 +4,6 @@
 
 #include "ramview.h"
 
-#include "core/mem_map.h"
-
 
 GRamView::GRamView(QWidget* parent) : QHexEdit(parent)
 {