Changes

esim.saip.FsProfileElement: Add file2pe() for single file conversion

We've had files2pe() for re-encoding all of the files, but let's add
a specific one for re-encoding only one of the files (such as commonly
needed during personalization)

Change-Id: I7b7f61aae6b7df6946dadf2f78fddf92995603ec

pySim.esim.saip.personalization: Support for EF.SMSP personalization

It's a not-too-uncommon requirement to modify the SMSC address stored in
EF.SMSP.  This adds a ConfigurableParameter for this purpose.

Change-Id: I6b0776c2e753e0a6d158a8cf65cb030977782ec2

ts_31_102.EF_ECC: Use PaddedBcdAdapter to skip trailing 'f'

The emergency numbers from the example are 911 / 913, and not 911f / 311f

Change-Id: Ibfe1e23431aa803b936dd8529e0542e93d9df0b9

Fix more odd-length digit sequences via PaddedBcdAdapter

There are more files where trailing digits are indicated using 'f' and
should be stripped during decode, including EF.MSISDN and EF.VGCS

This is not just a presentation issue, but actually rendered wrong data
before, see the modified test output where our "read_record_uicc.ok"
file contained "bcd_len: 7" but then only 6 BCD digits due to this bug.

Change-Id: I4571482da924a3d645caa297108279d182448d21