Changing package names due to ABI change 3 -> 4.
Adding file debian/libfm-gtk3-4.symbols for libfm-gtk3.so.4 library.
Adding file terminals.list into package libfm-data.

The 1.2.0 version introduced a file /usr/share/libfm/terminals.list
which should be included for any library.
Updating changelog file for 1.2.0 versions of packages.
Adding a package libfm-extra4 with libfm-extra.so.4 library.

The libfm-extra.so.4 library contains additional API which is independent
of other libfm* libraries but may be useful later.
Adding a package libfm-modules with loadable modules.

The 1.2.0 library has some parts of code moved into loadable modules.
This commit adds a package for those modules. Modules are loaded by
library itself therefore no extra dependencies, all will come with
libraries which use those modules.
Adding a package libfm-modules-dbg with debug symbols for loadable modules.
Removing override_dh_auto_test rule.

The 'make test' command works with current sources.