Changes

esim.saip: Fix parsing/generating fillPattern + repeatPattern

So far we only thought of default filling coming from a template.
However, filling can happen from the Fcp, and we need to properly parse
and [re-]encode that information.

Change-Id: Iff339cbe841112a01c9c617f43b0e69df2521b51
Related: OS#6643

pySim.esim.saip: Treat "Readable and Updateable when deactivated" flag

There's a second flag hidden in the TS 102 222 "Special File
Information"; let's parse + re-encode it properly.

Change-Id: I7644d265f746c662b64f7156b3be08a01e3a97aa
Related: OS#6643

esim.saip: Compute number of records from efFileSize and record_len

If we know the efFileSize and record_len, but Fcp doesn't contain
the number of records, we can simply compute it.

Change-Id: I0cc8e7241e37ee23df00c2622422904e7ccdca77

esim.saip: Fix computation of file content

When generating the file content (body), we need to proceed in the
following order:

1a) If FCP contains fillPattern/repeatPattern, compute file content from those

1b) If FCP doesn't contain fillPattern/repeatPattern but template
    exists, compute file content from template

2)  Apply any fillFileConten / fillFileOffset from the SAIP File on top
    of the above

Change-Id: I822bb5fbec11a3be35910a496af7168458fd949c
Closes: OS#6642

[cosmetic] esim.saip: Fix various typos in comments/docs/messages

Change-Id: I4fc603634a0f2b53e432a77f05e811a38ba065c2

[cosmetic] esim: Fix various typos in comments/messages/docs

Change-Id: I806c7a37951e72027ab9346169a3f8fe241f2c46

esim.saip: New methods for inserting ProfileElement into sequence

ProfileElements.insert_after_pe() is a convenience method to insert
a new PE after an existing one in the sequence.  This is a frequent
task as there are strict ordering requirements in the SAIP format.

Change-Id: I4424926127b4867931c2157e9340bacd2682ff0c

esim.saip.File: Re-compute file_size when changing body

If the API user modifies the size of the body, we need to check if we
need to re-compute the file_size attribute which is later encoded into
the fileDescriptor.  The size obviously must be large enough to fit the
body.  Let's do this implicitly by introducing a setter for File.body

Change-Id: I1a908504b845b7c90f31294faf2a6e988bdd8049

esim.saip.File: Proper ARR conversion of template (into) to file (bytes)

The encoding of the access rule reference is different in FileTemplate
vs File, let's make sure we properly convert it when instantiating a
File from a FileTemplate.

Change-Id: Ibb8afb85cc0006bc5c59230ebf28b2c0c1a8a8ed

esim.saip.File: Suppress encoding attributes that are like template

The point of the SAIP template mechanism is to reduce the size of the
encoded profile.  Therefore, our encoder in the to_fileDescriptor()
method should suppress generating attributes if their value is identical
to that of the template (if any).

Change-Id: I337ee6c7e882ec711bece17b7a0def9da36b0ad7

esim.saip.FsProfileElement: Add create_file() method

So far we mainly created File() instances when parsing existing
profiles.  However, sometimes we want to programmatically create Files
and we should offer a convenience helper to do so, rather than asking
API users to worry about low-level details.

Change-Id: I0817819af40f3d0dc0c3d2b91039c5748dd31ee2