* esim.saip.FsProfileElement: Add create_file() method
* esim.saip.File: Suppress encoding attributes that are like template
* esim.saip.File: Proper ARR conversion of template (into) to file (bytes)
* esim.saip.File: Re-compute file_size when changing body
* esim.saip: New methods for inserting ProfileElement into sequence
* [cosmetic] esim: Fix various typos in comments/messages/docs
* [cosmetic] esim.saip: Fix various typos in comments/docs/messages
* esim.saip: Fix computation of file content
* esim.saip: Compute number of records from efFileSize and record_len
* pySim.esim.saip: Treat "Readable and Updateable when deactivated" flag
* esim.saip: Fix parsing/generating fillPattern + repeatPattern
* README.md: Add note about pySim-trace.py dependencies
* pysim-test: rename pysim-test.sh to pySim-prog_test.sh
* tests: add test script for pySim-trace