Some fixes/improvements for the VFP/NEON assembler.
- Bugfix for VUZP & VZIP that would generate incorrect/undefined instructions
- Make softload builds safer by not overwriting the shared VFPData file in ResourceFS
- Usability improvement by supporting several synonym instructions that should be used where literal shift values of zero are specified (possibly we should do the same thing for ARM instructions?)
- Usability improvement for handling situations when "#0" is required (it'll now use the expression parser instead of looking for a character match)