Move all core types into namespaces (#1886)

* Reorganize namespaces

- Most types are now moved into the `melonDS` namespace
- Only good chance to do this for a while, since a big refactor is next

* Fix the build

src/debug/GdbArch.h

@@ -5,6 +5,7 @@
 namespace Gdb
 {
 
+using namespace melonDS;
 enum class Register : int
 {
 	r0,

src/debug/GdbCmds.cpp

@@ -8,6 +8,7 @@
 
 #include "GdbProto.h"
 
+using namespace melonDS;
 using Platform::Log;
 using Platform::LogLevel;
 

src/debug/GdbProto.cpp

@@ -24,6 +24,7 @@
 #include "GdbProto.h"
 
 
+using namespace melonDS;
 using Platform::Log;
 using Platform::LogLevel;
 

src/debug/GdbProto.h

@@ -13,6 +13,7 @@
 
 namespace Gdb {
 
+using namespace melonDS;
 constexpr int GDBPROTO_BUFFER_CAPACITY = 1024+128;
 
 extern u8 Cmdbuf[GDBPROTO_BUFFER_CAPACITY];

src/debug/GdbStub.cpp

@@ -25,6 +25,7 @@
 #include "../Platform.h"
 #include "GdbProto.h"
 
+using namespace melonDS;
 using Platform::Log;
 using Platform::LogLevel;
 

src/debug/GdbStub.h

@@ -13,6 +13,7 @@
 namespace Gdb
 {
 
+using namespace melonDS;
 enum class TgtStatus
 {
 	NoEvent,

src/debug/hexutil.h

@@ -9,6 +9,8 @@ extern "C"
 
 #include <stdint.h>
 
+namespace melonDS
+{
 inline static uint8_t hex2nyb(uint8_t v)
 {
 	if (v >= '0' && v <= '9') return v - '0';
@@ -71,5 +73,6 @@ inline static uint32_t unhex32(const uint8_t* src)
 }
 #endif
 
+}
 #endif