made some midnam MIDI instrument definitions

Hi,

I've made a bunch of .midnam's available. I wrote them. Maybe some folks here use the same (or similar) devices, and can use them either directly or want to modify for similar devices. This batch includes, for now, the following devices:

• Alesis MicroVerb4
• Digitech DSP128+
• Lexicon MPX500
• Lexicon MX200
• MFB Tanzbär
• Novation BassStationII

These .midnam's are rather complete, and contain MIDI Controllers, MIDI Notes (for the drum machine), and Patches/Program Changes.

You can find the files on github

Notes:

• I'm still struggling with BSII's NPN/NRPN for which the original specs from midi.org provide, but I haven't found a way to implement this yet. I found that the BSII also responds to the main CC#, thus providing 7bit resolution for ie. Filter Cutoff instead of the BSII's 8bit resolution. So if anyone finds a way, please keep me posted here, find me on freenode or do a PR on github and I would be most obliged.
• I've set the files to the channels I have the respective devices on. Edit the channel in the .midnam to suit your own setup. Is there a better way than this? Let me know or PR :)

Have fun!
at0m.