premake: add setup-hook

Adds a configure phase for packages using premake.
premakeConfigurePhase runs the correct premake version for the premake
you are using (see premake_cmd).

pkgs/development/tools/misc/premake/setup-hook.sh

@@ -0,0 +1,19 @@
+premakeConfigurePhase() {
+    runHook preConfigure
+
+    local flagsArray=(
+        ${premakefile:+--file=$premakefile}
+        $premakeFlags ${premakeFlagsArray[@]}
+        ${premakeBackend:-gmake}
+    )
+
+    echoCmd 'configure flags' "${flagsArray[@]}"
+
+    @premake_cmd@ "${flagsArray[@]}"
+
+    runHook postConfigure
+}
+
+if [ -z "$configurePhase" ]; then
+    configurePhase=premakeConfigurePhase
+fi