sim-applet: add "flash" and "remove" targets
Using wrong arguments for shadysim.py (e.g. wrong --max-menu-entry-text)results in cryptic errors, so let's version them along with the source.
sim-applet: rename to org.osmocom.IMSIPseudo
Makefile: adjust path to sim-tools
sim-applet: start with hello-stk
Import source from here: https://git.osmocom.org/sim/hello-stk