More clean up and started adding dedicated function to uicc, so that stack could be later extensible to other SEs such as 'eSE'

Change-Id: Id788c272269f4425a6e5568136d0afb39c08fc93
More clean up of code
- Added basic sanity checks for _transmit API
- Added operation specific classes in PP
- Added separate function for UICC specific operations

Change-Id: I70511eaa1f07ebf17b8a7fc91a6889fde75929e5