[Research] Use lib to parse PDU instead of doing it ourselves

[DomAmato]

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Is your feature request related to a problem? Please describe.

Not really its just something we can unload and has more features that what we currently implement

Describe the solution you'd like

remove all the pdu stuff which is complex and not feature complete

Describe alternatives you've considered

Additional context

[DomAmato]

might want to try: https://github.com/mozes/smpp.pdu