Adds a simple menu item to restart dnSpy to a other bit version (64 bit will restart as 32 bit and vice versa)

• build the dll from the source or from the release tab here: https://github.com/DeStilleGast/dnSpy-restart-as/releases
• place the dll file in the directory where dnSpy.exe is located or in a subfolder called "Extensions"
• (re)start dnSpy
• enjoy

• Follow instructions to add references from here https://github.com/0xd4d/dnSpy/wiki/Extensions
• build it
• Copy "dnSpy restart as.x.dll" to your dnSpy folder location (or a subfolder named "Extensions" and place the dll in there)
• (re)start dnSpy
• enjoy