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

1 files changed, 3 insertions, 0 deletions

diff --git a/src/SPU.h b/src/SPU.h
index 407a3f6..144c19b 100644
--- a/src/SPU.h
+++ b/src/SPU.h
@@ -22,6 +22,8 @@
 #include "Savestate.h"
 #include "Platform.h"
 
+namespace melonDS
+{
 class SPU;
 
 class SPUChannel
@@ -257,4 +259,5 @@ private:
     SPUCaptureUnit* Capture[2];
 };
 
+}
 #endif // SPU_H