As the script depends on python3, let's put it into a new
osmo-remsim-apitool package.
As we're installing the tool system-wide, rename it from
remsim-apitool.py to osmo-remsim-apitool.
Closes: OS#5612
Change-Id: I11d779f66833b5294ffeb422ce6b2a705719a899
This adds some initial code, particularly the ASN.1 definition of the
RSPRO protocol, related makefile to build it using ffasn1c, and our
usual autoconf infrastructure to build it.
Change-Id: Ibaa993b59e9a65a0242b0f42b27d9cd29f8e1878