Add KConfig recipe

Summary:
Based on Johan's work branch. This also disables unit tests for all
frameworks, tests aren't executable for cross-builds anyway, and KConfig
tries to run the target kconfig_compiler there.

The native version can still further improved by allowing a QtCore-only
build of KConfig, as we are only interested in the kconfig_compiler.

Reviewers: cordlandwehr

Reviewed By: cordlandwehr

Differential Revision: https://phabricator.kde.org/D6987

recipes-kf5/tier1/kconfig.inc

@@ -0,0 +1,21 @@
+# requires session management support in QtGui
+# eg. via PACKAGECONFIG_append_pn-qtbase = "sm" in local.conf
+
+DESCRIPTION = "KConfig"
+HOMEPAGE = "https://api.kde.org/frameworks/kconfig/html/index.html"
+LICENSE = "LGPL-2.1"
+LIC_FILES_CHKSUM = "file://COPYING.LIB;md5=2d5025d4aa3495befef8f17206a5b0a1 \
+    "
+PR = "r0"
+
+DEPENDS = "qtbase"
+
+SRC_URI = "git://anongit.kde.org/kconfig;nobranch=1"
+S = "${WORKDIR}/git"
+
+inherit cmake_kf5
+
+FILES_${PN}-dev += " \
+    ${libdir}/cmake/KF5Config/*.cmake \
+    ${prefix}/mkspecs/modules/qt_KConfig*.pri \
+"