Contribs: add asdcplib

Not activated by default, because of probable hard OpenSSL dependency
Note that expat is not mandatory to build it...

ASDCPlib in itself is BSD 3-clause

contrib/src/asdcplib/SHA512SUMS

+b8ea9ed77e7fd207f991c1edf91f6601e4fdd626c203890ef938cef8790b29bd1a11945a03a475f6e1c827a0ad170980b7d4c5a7d81e7758aeb262ccb408f241  asdcplib-1.12.58.tar.gz

contrib/src/asdcplib/rules.mak

+# asdcplib
+
+ASDCPLIB_VERSION := 1.12.58
+
+ASDCPLIB_URL := http://download.cinecert.com/asdcplib/asdcplib-$(ASDCPLIB_VERSION).tar.gz
+
+#PKGS += asdcplib
+ifeq ($(call need_pkg,"asdcplib >= 1.12"),)
+PKGS_FOUND += asdcplib
+endif
+
+$(TARBALLS)/asdcplib-$(ASDCPLIB_VERSION).tar.gz:
+	$(call download,$(ASDCPLIB_URL))
+
+.sum-asdcplib: asdcplib-$(ASDCPLIB_VERSION).tar.gz
+
+asdcplib: asdcplib-$(ASDCPLIB_VERSION).tar.gz .sum-asdcplib
+	$(UNPACK)
+	$(MOVE)
+
+.asdcplib: asdcplib
+	cd $< && $(HOSTVARS) ./configure $(HOSTCONF)
+	cd $< && $(MAKE) install
+	touch $@