[layer23] SIM client completion

[layer23] SIM client completion

The SIM client is now complete. Because it usefull for multiple
applications, i moved it to the layer23/src/common directory.

The SIM reader works together with mobile process. Fixes were made.
Thanx to all for testing, finding bugs, and making it work as it is
supposed to do.

The current version uses special L1CTL messages to send and receive APDUs.
This will change in the future, when BTSAP interface is completed.

Please note that this client will not work until the layer1 SIM reader
fixes and extensions are committed.