ldas-tools-*-swig packages lack install dependencies (and more)

As discussed in the context of nds2-client-swig (nds/nds2-client#157), the omission of --with=python* in the dh $@ line of debian/rules results in missing dependencies on python* itself, stray .../__pycache__/* files present in the resulting package, and possibly missing requires.

Please add --with=python3 (as there are no Python2 modules to be built anymore) to all affected packages, and review MODULE dependencies from CMakeLists.txt files as those will have to be added manually too.

Also ldas-tools-al-swig is lacking a build dependency on dh-python AFAICT.