ECM/Crypto management proposal

Hello

i have modified the plugin and some xml files in order to:

- add possibility to select kind of ECM info in second infobar (default Metrix converter or PLi one, using PliExtraInfo converter -- very details information)

- add possibility to show server name in infobar (using CryptoInfo converter).
This will be shown in followinh shape:
server_name@hop(ecm time)   ---> very intuitive
if lib/python/Tools/GetEcmInfo.py is synchornised with http://sourceforge.net/p/openpli/enigma2/ci/master/tree/lib/python/Tools/GetEcmInfo.py

with current GetEcmInfo.py version, the shape is as following:
Server: server_name

Thank you for your feedback.