Add sunshin-run and -stop wrapper scripts

These can be used to manage starting and stopping processes that spawn children that otherwise would not be terminated when the moonlight session ends

overlay/usr/bin/sunshine-run

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+###
+# File: sunshine-run
+# Project: bin
+# File Created: Tuesday, 23rd August 2023 3:28:52 pm
+# Author: Josh.5 (jsunnex@gmail.com)
+# -----
+# Last Modified: Friday, 23rd August 2023 4:21:00 pm
+# Modified By: Josh.5 (jsunnex@gmail.com)
+###
+set -e
+
+# CATCH TERM SIGNAL:
+_term() {
+    pkill -P $$
+}
+for sig in INT QUIT HUP TERM; do
+  trap "
+    _term
+    trap - $sig EXIT
+    kill -s $sig "'"$$"' "$sig"
+done
+trap _term EXIT
+
+
+# RUN CHILD PROCESS
+"${@}" &
+proc_pid=$!
+
+
+# WAIT FOR CHILD PROCESS:
+wait "$proc_pid"