TT#53701 Improve dependencies for obsolete transitional package

Let's try to make the experience a bit smoother, by tuning a bit the
dependency relationships for the obsolete transitional package.

We add versioned Breaks, and a version constraint to the existing
Replaces, against the obsolete package, so that we force an upgrade
in case we just install the libngcp-bulkprocessor-perl package.

We add a strict versioned dependency from the obsolete package to
the new one, so that we force a matching version, in case people
try to install the package standalone.

Change-Id: I2642b4ec00ccbf9d744790c52903c84f53cc9a0b

debian/control

@@ -18,7 +18,9 @@ Homepage: https://www.sipwise.com/
 Package: libngcp-bulkprocessor-perl
 Architecture: all
 Replaces:
- ngcp-bulk-processor,
+ ngcp-bulk-processor (<< 7.3),
+Breaks:
+ ngcp-bulk-processor (<< 7.3),
 Depends:
  ${misc:Depends},
  ${perl:Depends},
@@ -77,7 +79,7 @@ Architecture: all
 Section: oldlibs
 Depends:
  libexcel-reader-xlsx-perl,
- libngcp-bulkprocessor-perl,
+ libngcp-bulkprocessor-perl (= ${source:Version}),
 Description: transitional dummy package
  This package has been split into libexcel-reader-xlsx-perl and
  libngcp-bulkprocessor-perl. It can be safely removed once it is not