Added wip/git-docs-html, same version as in pkgsrc devel/git

This package installs HTML documentation for the GIT distributed version control
suite.

Browsing this documentation can be triggered by git(1) automatically when using
the online help with the "-w" option, as follows:
$ git branch --help -w

To set it as the default behavior:
$ git config --global help.format html

git-docs-html/DESCR

@@ -0,0 +1,2 @@
+This package installs HTML documentation for the GIT distributed version control
+suite.

git-docs-html/Makefile

@@ -0,0 +1,22 @@
+# $NetBSD$
+
+PKGNAME=	git-docs-html-${GIT_VERSION}
+COMMENT=	GIT Tree History Storage Tool (HTML documentation)
+
+DISTINFO_FILE=		../../devel/git-base/distinfo
+
+BUILD_DEPENDS+=		asciidoc-[0-9]*:../../textproc/asciidoc
+BUILD_DEPENDS+=		xmlto-[0-9]*:../../textproc/xmlto
+
+USE_LANGUAGES=		c
+BUILD_TARGET=		html
+INSTALL_TARGET=		install-html
+
+UNLIMIT_RESOURCES+=	datasize
+
+USE_TOOLS+=             perl
+CONFIGURE_ARGS+=	--with-perl=${PERL5:Q}
+
+.include "../../devel/git/Makefile.common"
+
+.include "../../mk/bsd.pkg.mk"