Makefile fixes / JUTNameTab (#129)

* Makefile: Fix issues with iconv causing it to break under devkitPro / msys

The version of iconv included in devkitPro does not have a -o option,
so replace it with normal shell redirection. Also, SHIFT-JIS does not
have a mapping for ~, so output the Windows CP932 variant instead,
which does. See:
https://en.wikipedia.org/wiki/Tilde#Unicode_and_Shift_JIS_encoding_of_wave_dash
https://en.wikipedia.org/wiki/Code_page_932_(Microsoft_Windows)#Single-byte_character_differences

* Update diff configuration

-Bbinary doesn't seem to work with my copy of
bjdump (it says it can't decode unknown architecture)

Cheese things by using expected/ instead of having
the user place things manually.

* JUTNameTab

* J3DPacket / J3DDrawBuffer

* format

Co-authored-by: lepelog <lepelog@users.noreply.github.com>

include/JSystem/J3DGraphBase/J3DSys.h

@@ -3,4 +3,10 @@
 
 #include "dolphin/types.h"
 
+// Perhaps move to a new J3DEnum.h?
+enum J3DError {
+    kJ3DError_Success = 0,
+    kJ3DError_Alloc = 4,
+};
+
 #endif /* J3DSYS_H */