libidn2: new build-block added

Libraries/libidn2/build

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+#!/usr/bin/env modbuild
+

Libraries/libidn2/files/config.yaml

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+format: 1
+libidn2:
+  defaults:
+    group: Libraries
+    relstage: stable
+    docfiles:
+      - ABOUT-NLS
+      - AUTHORS
+      - CONTRIBUTING.md
+      - COPYING
+      - COPYING.LESSERv3
+      - COPYING.unicode
+      - COPYINGv2
+      - ChangeLog
+      - INSTALL
+      - NEWS
+      - README
+      - README.md
+    urls:
+      - url: https://ftp.gnu.org/gnu/libidn/libidn2-${V_PKG}.tar.gz
+  shasums:
+    libidn2-2.3.4.tar.gz: 93caba72b4e051d1f8d4f5a076ab63c99b77faee019b72b9783b267986dbb45f
+  versions:
+    2.3.4:
+      config:
+        relstage: unstable

Libraries/libidn2/files/variants

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+libpng/1.6.34	unstable

Libraries/libidn2/modulefile

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+#%Module1.0
+
+module-whatis		"PNG reference library"
+module-url		"http://www.libpng.org/pub/png/libpng.html"
+module-license		"Open source"
+module-maintainer	"Achim Gsell <achim.gsell@psi.ch>"
+
+module-help		"
+libpng is the official PNG reference library. It supports almost all
+PNG features, is extensible, and has been extensively tested for over
+23 years. 
+"
+