Hacktools

Added map bank support to ws images.

Added ws.repackMappedTiles
Added nitro.readNCGRTiles function
Added common.mergeSections

Added 4bpp support to ws images
Added width and height parameters to ws.readMappedImage
Added palette export to ws images
Added support to change image size to wii.writeTPL
Added read/writeFloat and readAt functions to common.Stream
Added .import directive to nasm

Improved common.getSection

Improved wordwrapping.

Improved psp.repackIso/extractIso.