cli_monitor: Support dynamically linked binaries
terminal: Add escape handling for CUB

This VT102 command is triggered by busybox when pressing the 'pos1' key.
terminal_mux: Clear terminal when activating menu

This patch clears the terminal each time the menu appears and thereby
wipes away artifacts that might occur when combining terminal_mux with
kdb_uart_drv and the kernel prints messages directly.
Add missing route to timer
New 'l4linux_dynamic.run' script

This run script allows the user to dynamically start and stop L4Linux
instances using a command-line interface over a serial line.