Add support for Userspace Arduino
Add support for Userspace Arduino

Added support for userspace arduino by checking for variable definition USERSPACE_MAKE
in the makefile. Contains several workarounds to get it working.

bugobliterator/BUAGI,prpplague/Userspace-Arduino,bugobliterator/BUAGI,prpplague/Userspace-Arduino,bugobliterator/BUAGI,prpplague/Userspace-Arduino,bugobliterator/BUAGI,bugobliterator/BUAGI,prpplague/Userspace-Arduino,bugobliterator/BUAGI