cmark: initial add 0.29.0

It is on the way to meta-openembedded but I need it now on warrior for QML
apps. So keep cmark here temporaray.

Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>

recipes-support/cmark/cmark_git.bb

@@ -0,0 +1,17 @@
+SUMMARY = "CommonMark parsing and rendering library and program in C"
+HOMEPAGE = "https://github.com/commonmark/cmark"
+LICENSE = "BSD-2-Clause & MIT"
+LIC_FILES_CHKSUM = "file://COPYING;md5=81f9cae6293cc0345a9144b78152ab62"
+
+SRC_URI = "git://github.com/commonmark/cmark.git"
+SRCREV = "8daa6b1495124f0b67e6034130e12d7be83e38bd"
+S = "${WORKDIR}/git"
+
+PV = "0.29.0"
+
+inherit cmake lib_package
+
+EXTRA_OECMAKE += " \
+    -DCMARK_TESTS=OFF \
+    -DCMARK_STATIC=OFF \
+"