Python2 and python3 versions of plugins

[matejzero]

Bareos is shipping 2 versions of plugins in Bareos 21, one for python2 and one for python3.

So we have:

• bareos-filedaemon-python2-plugin and bareos-filedaemon-python3-plugin
• bareos-storage-python2-plugin and bareos-storage-python3-plugin
• bareos-director-python2-plugin and bareos-director-python3-plugin

At the moment, plugin tries to install ...-python-... package, which fails on version 21 as that package does not exists.

Any idea on how to go about solving this issue? Can't set package names in params, since we don't have BareOS version parameter there, it's only in repository.pp.