Add INTLLIBS back into librazor_la_LIBADD and also into razor.pc

INTLLIBS was originally added into librazor_la_LIBADD (but not razor.pc)
in 611c84a3f4b4538a65d186050608c17adbf17770 and then removed in
236cfc8ecc5c66288e41bf9b72051a3b18326e1c over concerns that it meant
that building static applications (eg., in plover) required a static
version of libintl. Since then, however, the inclusion of gnulib's
getopt has caused the build to fail without INTLLIBS in librazor_la_LIBADD
with messages of the form:

../gl/.libs/libgnu.a(getopt.o): In function `_getopt_internal_r':
/home/ali/wk/razor/vpath/gl/../../working/gl/getopt.c:808: undefined reference to `libintl_gettext'

while building librazor.dll.a

Thus it appears that INTLLIBS really is needed and should go back into
librazor_la_LIBADD (which fixes the build) and should also be in Libs.private
in razor.pc for static builds. This means that a static version of libintl
will be required (eg., as part of mingw64-gettext-static).

Along the way, razor.pc has also been fixed to avoid overlinking
(https://wiki.openmandriva.org/en/Overlinking_issues_in_packaging)
and a missing include directory that caused the razor executable to
fail to build was added.

## Process this file with automake to produce Makefile.in

SUBDIRS = data docs gl librazor src test po

ACLOCAL_AMFLAGS = -I gl/m4

# Creating ChangeLog from git log (taken from cairo/Makefile.am):

ChangeLog: $(srcdir)/ChangeLog

$(srcdir)/ChangeLog:

	@if test -d "$(srcdir)/.git"; then \

	  (cd "$(srcdir)" && \

	  ./missing --run git-log --stat) | fmt --split-only > $@.tmp \

	  && mv -f $@.tmp $@ \

	  || ($(RM) $@.tmp; \

	      echo Failed to generate ChangeLog, your ChangeLog may be outdated >&2; \

	      (test -f $@ || echo git-log is required to generate this file >> $@)); \

	else \

	  test -f $@ || \

	  (echo A git checkout and git-log is required to generate ChangeLog >&2 && \

	  echo A git checkout and git-log is required to generate this file >> $@); \

	fi

.PHONY: ChangeLog $(srcdir)/ChangeLog

EXTRA_DIST = 			\

	TODO	 		\

	ChangeLog 		\

	intltool-extract.in 	\

	intltool-merge.in 	\

	intltool-update.in

DISTCLEANFILES = \

	intltool-extract	\

	intltool-merge		\

	intltool-update

clean-local :

	rm -f *~