Add scoped topics, suback response topic before publish

[jw-msft]

• Distinguishes between scoped topics (operations other than enrollment) and non-scoped topics (enrollment response will contain the scope suffix for later operations)
• Matches correlation id from the mqtt correlation-data to pair the subscripbe with its acknowledgement from the mqtt broker
• various fixes and tweaks
• deletion of some unused/redundant codec
• made state store in-memory only to simplify (will add persistence back later)

[Jerry-GeGarcia]

• For 'ainfo_resp' messages, if the Correlation Data matches the 'en,the client should parse the message and update the agentinfo state.

what is 'en? Oh, enrollment.

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Refers to: src/extensions/agent_modules/cloud_communication/eg_mqtt_broker_client/src/adu_agent_info_management.c:65 in 4720e51. [](commit_id = 4720e512a20cf4eb0d01d8f7f504bbe837449c27, deletion_comment = False)

[Jerry-GeGarcia]

• @brief Implements the Device Update agent state store functionality.

I could use another pair of eyes on this

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Refers to: src/extensions/agent_modules/shared/state_store/src/agent_state_store.c:3 in 4720e51. [](commit_id = 4720e512a20cf4eb0d01d8f7f504bbe837449c27, deletion_comment = False)

[jw-msft]

• For 'ainfo_resp' messages, if the Correlation Data matches the 'en,the client should parse the message and update the agentinfo state.

what is 'en? Oh, enrollment.

Refers to: src/extensions/agent_modules/cloud_communication/eg_mqtt_broker_client/src/adu_agent_info_management.c:65 in 4720e51. [](commit_id = 4720e51, deletion_comment = False)

No actually it's a serious typo--I think I was trying to say matches, then the client but I was typing way to fast with probably some editor key-seq macros mixed in.

Pushed a fix

[jw-msft]

merged up to top pr stack that was merged to topic