FPU registers for ARM, ARM64

[dkmcgrath]

Currently, there is no support for ARM/ARM64 FPU registers. Would it be possible to add those in? Moving from GDB to LLDB and from x86 to ARM, this is something that I miss.

As of now, passing --fpu on an ARM system results in voltron crashing:

❯ ./voltron v r --fpu 

Exception in thread Thread-1: 
Traceback (most recent call last): 
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/threading.py", line 973, in _bootstrap_inner  
    self.run() 
  File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.9/lib/python3.9/threading.py", line 910, in run 
    self._target(*self._args, **self._kwargs) 
  File "/Users/dmcgrath/Library/Python/3.9/lib/python/site-packages/voltron/core.py", line 549, in run 
    self.update() 
  File "/Users/dmcgrath/Library/Python/3.9/lib/python/site-packages/voltron/core.py", line 518, in update 
    self.callback(results) 
  File "/Users/dmcgrath/Library/Python/3.9/lib/python/site-packages/voltron/view.py", line 396, in render 
    self.render(results) 
  File "/Users/dmcgrath/Library/Python/3.9/lib/python/site-packages/voltron/plugins/view/register.py", line 484, in render 
    template = '\n'.join(map(lambda x: self.TEMPLATES[arch][self.config.orientation][x], self.config.sections)) 
  File "/Users/dmcgrath/Library/Python/3.9/lib/python/site-packages/voltron/plugins/view/register.py", line 484, in <lambda> 
    template = '\n'.join(map(lambda x: self.TEMPLATES[arch][self.config.orientation][x], self.config.sections)) 
KeyError: 'fpu'  

This is on an M1 Max with 64GB of RAM, running macOS 14.0 Sonoma.