asn1 improvement proposal

[Per Bergqvist]

Hi,

The asn1 en/decoder proberly handles ellipsis notation as it is
today.

However, the decoder receives an extended PDU with 
ellipsis data it will simply discard that information.
There is no way to tell the encoder to add extension information.

I propose that each record generated by the compiler should add 
an additional '$ellipsis' field for the last '...' in a sequence/set.

The decoder should add any extension information to the '$ellipsis'
field. The encoder should allow the user to put extension information.

This improvement would allow creation of proxy functions where one
does not always have the latest available/vendor specific spec.

/Per
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Per Bergqvist
Synapse Systems AB
Phone: +46 709 686 685
Email: per@REDACTED