Fix the typemap for svn_opt_revision_t. Followup to r1443811.

r1443811 moved the guts of the typemap into a function, but didn't account for
accepting a _p_svn_opt_revision_t object from Perl and the need to change
the pointer.

* subversion/bindings/swig/perl/libsvn_swig_perl/swigutil_pl.c
  (svn_swig_pl_set_revision): Take a svn_opt_revision_t **rev instead of
    just a svn_opt_revision_t *rev.

* subversion/bindings/swig/perl/libsvn_swig_perl/swigutil_pl.h
  (svn_swig_pl_set_revision): Update declaration to match changed function.

* subversion/bindings/swig/include/svn_types.swg
  (svn_opt_revision_t): Update call to svn_swig_pl_set_revision().

* subversion/bindings/swig/perl/native/t/9wc.t
  Enable the kind tests that were failing due to the problem with the typemap. 


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1445267 13f79535-47bb-0310-9956-ffa450edef68