OpenConfig Platform Transceiver

[nakano-omw]

OpenConfig support for Platform Transceiver.

sonic-net/SONiC#1858
The HLD has already been reviewed in the UMF WG.

Add support for following features:

• serial-no
• connector-type
• vendor
• vendor-part
• date-code
• supply-voltage
• laser-temperature
• output-power
• input-power
• laser-bias-current

[mssonicbld]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[mssonicbld]

/azp run

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[nakano-omw]

@hdwhdw @anders-nexthop
This is the updated PR that we requested at the Extend SONiC Workshop. The HLD has already been reviewed in the UMF WG. I fixed the issues from the previous PR (#160) and recreated this one so that the diff only includes the actual changes. Could you please review this version when you get a chance? Thanks!