ut-core: Feature: Enable GET Requests in ut-control

[kanjoe24]

Problem/Opportunity

This Feature is to help merge tickets in ut-control to ut-core:

• support for control_plane to support GET commands
• KVP: upgrade to retrieve kvp data in user requested format

Proposed Solution

This Feature is to help merge tickets in ut-control to ut-core:

rdkcentral/ut-control#65
rdkcentral/ut-control#67

Acceptance Criteria (Optional)

No response

Additional Notes (Optional)

No response

[kanjoe24]

Task on hold until required.