[visual-studio-code-bin] Add wrapper for custom flags

This allows per-user configuration for native Wayland support.

visual-studio-code-bin.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+XDG_CONFIG_HOME=${XDG_CONFIG_HOME:-~/.config}
+
+# Allow users to override command-line options
+if [[ -f $XDG_CONFIG_HOME/code-flags.conf ]]; then
+   CODE_USER_FLAGS="$(cat $XDG_CONFIG_HOME/code-flags.conf)"
+fi
+
+# Launch
+exec /opt/visual-studio-code/bin/code $CODE_USER_FLAGS "$@"