Experimental implementation

In this experimental implementation of Launchpad Button Behaviour there
are mostly changes in the way Launchpad Buttons work right now. Now
they're partially driven with WindowsMediaPlayer events, and partially
with Me.KeyDown and Me.KeyUp events. Currently implemented only
launchpadButton00.
Added BehaviourForm (Form6.vb), finished writing it

This commit makes VB.Launchpad partially unusable. Do not use. Also
other minor bugfixes.
Implemented Behaviour for one Launchpad Button

Also bugfix in BehaviourForm, where a sub would call a function which
raised an event to that same sub, resulting in an infinite loop.
Abandoned changing colors while playing, because they cause errors
combined with behaviour. This abandoning left an unused function in
Functions.vb, so it was removed too.
Implemented Behaviour for all Launchpad Buttons

Now, VB.Launchpad is usable.
Fixed Behaviour bug

Hold was the same as Hold-Repeat for all but one Launchpad Button
Presets implemented Behaviour, minor bugfixes
Merge pull request #1 from dominik-matijaca/lp-behaviour