libdeng2: Imported the Kitchen Sink scripting test from Hawthorn

Added a source subdirectory for small test apps. The "script" test
will run through the kitchen_sink.de script that aims to test (and
demonstrate) all of the language's features.

doomsday/doomsday.pro

@@ -7,4 +7,5 @@ SUBDIRS = \
     build \
     libdeng2 libdeng \
     engine plugins host \
+    tests \
     postbuild

doomsday/tests/config_test.pri

@@ -0,0 +1,15 @@
+include(../config.pri)
+include(../dep_deng2.pri)
+
+macx {
+    defineTest(macDeployTest) {
+        # Arg 1: target name (without .app)
+        fwDir = \"$${OUT_PWD}/$${1}.app/Contents/Frameworks/\"
+        doPostLink("rm -rf $$fwDir")
+        doPostLink("mkdir $$fwDir")
+        doPostLink("cp -fRp $$OUT_PWD/../../libdeng2/libdeng2*dylib $$fwDir")
+
+        # Fix the dynamic linker paths so they point to ../Frameworks/ inside the bundle.
+        fixInstallName($${1}.app/Contents/MacOS/$${1}, libdeng2.2.dylib, ..)
+    }
+}