debug.h:Align M111 debug bit codes with Repetier-Host.

the pid_tuning branch might be cool, but... I had a couple problems with RepetierHost:

1) the software sends a M111 S15 per https://github.com/repetier/Repetier-Host/blob/f01afccee26c93d2158dbfd04458a65a0b869449/src/RepetierHost/view/PrintPanel.cs#L401

2) The Repetier Host sender filters the G-code through its parser so that:

    M130 S0.1
drops the decimals and sends:

    N2558M130S0*120

You can see the storage for S is repetier is an int from  https://github.com/repetier/Repetier-Host/blob/master/src/RepetierHost/model/GCode.cs#L122  and that the parser casts it to an int at https://github.com/repetier/Repetier-Host/blob/master/src/RepetierHost/model/GCode.cs#L395

Also a lack of spaces seem to screw up the repetier parser so that:

    M130S1

sends:

    N2670M130*50

This patch changes the debug bit codes to align with repetier-host, but can't touch the others.