Initial Commit
Set Columns to low when they are active.
Add LEDS bus to indicate which Column is active.
Fix up commit.  Change width of row and column busses.
Add Test Bench.
Fix naming error.  Advance state NS in each state.
Tested with test bench.  Seems to be working.
Add Wrapper top module to test and use.
Changed order of columns and led lightings.
Working at appx. 1Hz.  One LED is malfunctioning, but everything else is working
Working module displays pressed button on the display.
Assign bottom data pin to be at 5V so an 8 pin header can be used.
Merge remote-tracking branch 'TelephoneKeypad/master'