[layer23] Added XOR and COMP128 encryption to test SIM

[layer23] Added XOR and COMP128 encryption to test SIM

To define/change a key for the test SIM, use the following sequence:

conf t
ms 1
test-sim
ki comp128 xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx
end
write

or use:
ki xor xx xx xx xx xx xx xx xx xx xx xx xx