Main reason for this split is PBS, which only needs the plugins and
would like to avoid the perl one (which pulls in pve-common too)
This includes a few small changes which are technically not direct
part of the split, but related enough:
* change source name of package from libproxmox-acme-perl to
libproxmox-acme
* make lintian override for script exec permission narrower to avoid
possible false negatives in the future, really only allow the
dnsapi ones.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>