Reorganize library code into libs/ (#3119)

* Reorganize files into libs/{dolphin,JSystem,PowerPC_EABI_Support,revolution,TRK_MINNOW_DOLPHIN}

* Update configure.py and project.py for new libs structure

* Refactor `#include <dolphin/x.h>` -> `<x.h>`

* Remove `__REVOLUTION_SDK__` forwards from dolphin

* Fix dolphin/ references in revolution

* Wrap `#include <dolphin.h>` in `!__REVOLUTION_SDK__`

* Always build TRK against dolphin headers

* Resolve revolution SDK header resolution issues

include/Z2AudioLib/Z2Calc.h

@@ -1,7 +1,7 @@
 #ifndef Z2CALC_H
 #define Z2CALC_H
 
-#include <dolphin/types.h>
+#include <types.h>
 #include "m_Do/m_Do_lib.h"
 
 namespace Z2Calc {

include/Z2AudioLib/Z2Param.h

@@ -1,7 +1,7 @@
 #ifndef Z2PARAM_H
 #define Z2PARAM_H
 
-#include <dolphin/types.h>
+#include <types.h>
 
 struct Z2Param {
     static f32 DISTANCE_MAX;

include/Z2AudioLib/Z2StatusMgr.h

@@ -2,7 +2,7 @@
 #define Z2STATUSMGR_H
 
 #include "JSystem/JAudio2/JASGadget.h"
-#include <dolphin/mtx.h>
+#include <mtx.h>
 
 struct Z2StatusMgr : public JASGlobalInstance<Z2StatusMgr> {
     Z2StatusMgr();