Changes

debian: add python3-osmopy-{libs,utils}.install

Add debian/*.install files to avoid the need to override Debian's
dh_auto_install or other debhelper rules.  This also provides
a cleaner way to install miscellaneous files (e.g. config examples
and systemd unit files) and simplifies maintenance of the packaging.

Change-Id: I94b940789e138341792f40eedeedb73d4e4d421e

debian: install /etc/osmocom/osmo-trap2cgi.ini

The osmo-trap2cgi.service needs this file.

Change-Id: I6251364e36c691b7a8348c4adc4ee34ff141bca6

Drop osmopy/twisted_ipa.py and scripts/{ctrl2cgi.py,soap.py}

scripts/{ctrl2cgi.py,soap.py} have been deprecated and scheduled
for removal back in 2019.  These scripts have been replaced by
scripts/osmo_trap2cgi.py, which no longer needs Twisted.

Change-Id: I848f60270dd683a56f56117c328d9961ac678d4b
Related: 684388f ("Add initial version of asyncio trap2cgi script")
Related: 7230f68 ("Mark soap.py as deprecated")