x64 and hsfload improvements, build every REL (#582)

* Port some of hsfload.c

* More byteswaps in hsfload.c

* Finish hsfload besides cenv

* hsfload fixes

* Some x64 improvements

* More x64 improvements

* 64 bit improvements

* Link in lots of files

* Fix armem bug

* Fix dll killing, load modeseldll

* Fixes, clearing TODOs

* Tons of warning/error fixes

* Linux build fixes

* Add -fPIC flag to fix build on x64 linux

* GXSETARRAY sizes and misc fixes

* More fixes

* Build all RELs

* Implement C_Quat functions

* Fix PAL build

src/REL/m418Dll/main.c

@@ -2857,7 +2857,9 @@ void fn_1_9F94(omObjData *object)
     object->func = fn_1_9BA4;
 }
 
+#ifdef __MWERKS__
 #include "src/REL/executor.c"
+#endif
 
 void fn_1_A1F0(void)
 {