Support for SNMPv2C Packet Header (Data Plane Only) (#347)

* basic packet header model for snmpv2

* bulkpdu added

* review comments

* bug fix

* Update auto generated content

* bug fix

* Update auto generated content

* signed field updated

* signed field updated

* Update auto generated content

* signed field updated

* Update auto generated content

* review comments

* Update auto generated content

* open-api art branch updated

* Update auto generated content

* model updated

* Update auto generated content

* model updated

* Update auto generated content

* description added

* Update auto generated content

* review comments

* Update auto generated content

* review comments

* Update auto generated content

* Update auto generated content

* Update auto generated content

* descriptions updated

* descriptions updated

* descriptions updated

* Update auto generated content

* review comments

* Update auto generated content

* bug fix

* Update auto generated content

* Updating openapiart version to 0.3.8

* Update auto generated content

* bug fix

* bug fix

* Update auto generated content

* update openapiart branch

* Update auto generated content

* ipv4 support only

* Update auto generated content

* v0.13.5

* Update auto generated content

* Update auto generated content

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Co-authored-by: Github Actions Bot <[email protected]>
Co-authored-by: vhowdhur <[email protected]>
Co-authored-by: Ashutosh Kumar <[email protected]>