* add shield assets

* add shieldD assets

* add GCN US assets

* add GCN JP asset enums

* add GCN PAL asset enums

* add WII asset enums

* add WII Rev 2 asset enums

* add all other files

* change asset include directory to force "res/" prefix

* remove wrong duplicate marks

* Allow cpp files to reference arc enums

* rename all resource files to not begin with "res_"

* update res_arc tool to use argparse

* remove Stage enums