TT#6429 Build-Depend on libmodule-build-perl

Build-Depend on libmodule-build-perl which is not part of the perl
distribution anymore, or the perl versions that provided the module.

Change-Id: Idabc17249338f0c19f984a4bf9d947adadcaea43

debian/control

@@ -2,7 +2,9 @@ Source: ngcp-api-tools
 Section: admin
 Priority: extra
 Maintainer: Sipwise Development Team <support@sipwise.com>
-Build-Depends: debhelper (>= 9~)
+Build-Depends:
+ debhelper (>= 9~),
+ libmodule-build-perl | perl (<< 5.21.0~),
 Standards-Version: 3.9.8
 Homepage: https://www.sipwise.com/