Updated pin assignments in FPGA. Fixed bug with graph not working properly in viewer.

Also fixed minor errors with file naming / metadata details
Fixed bug with continuous spectra. Disabled some functionality on viewer while in live mode.
Added new event 'PauseEvent' to viewer form, to allow remote triggering of the pause button on Coreform
Trying to add functionality to pause from space bar
Successfully pausing from space bar (in viewer only)
Couple of minor tweaks to previous edits