Make all sxmo menu SSH mode compatible

We then simplify the sxmo_modemtext that was already using SSH related
behaviors.

Signed-off-by: Stacy Harper <contact@stacyharper.net>
Signed-off-by: Maarten van Gompel <proycon@anaproy.nl>

scripts/core/sxmo_terminal.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env sh
+
+TERMMODE=$([ -n "$SSH_CLIENT" ] || [ -n "$SSH_TTY" ] && echo "true")
+
+if [ "$TERMMODE" = "true" ]; then
+	while [ "-e" != "$1" ] || [ 0 -eq $# ]; do
+		shift
+	done
+	shift
+else
+	set -- st "$@"
+fi
+
+exec "$@"