Package and release firmware repository

@clemens asked:

Speaking of dependency libraries: Do we actually have the possibility to download all the required libraries in a swing without using git?

@andreas says:

Not yet, sorry! We should prioritize packaging the firmware repository into a tarball and/or zip archive including all dependency libraries from git submodules. This can make non-git users get started easier with firmware development.

See also:

Naja, man hat zumindest alle an einem Ort:
https://github.com/hiveeyes/arduino/tree/master/libraries

Viele Grüße
Clemens