Fix dependencies to make sfdoc work

Turns out moving sfdoc code to dedicated module *and* having the binary
in main package created cyclic dependecy.  However, there's easy way out;
let's just run with it as long as it works on most distros.

packaging/debian/control

@@ -14,6 +14,7 @@ Architecture: all
 Depends:
  perl,
  procps,
+ shellfu-bash-sfdoc,
 Suggests:
  source-highlight,
 Description: __MKIT_PROJ_NAME__ - __MKIT_PROJ_TAGLINE__

packaging/template.spec

@@ -16,6 +16,7 @@ BuildRequires:  perl
 BuildRequires:  %{pspkg}
 
 Requires: %{pspkg}
+Requires: shellfu-bash-sfdoc
 %description
 Shellfu is an attempt to add modularity to your shell scripts.