Add narg kvp to configuration/deployment create and create inline json wiki page

[Elsie4ever]

Addition of new parameters is introduced in az iot hub configuration create and
az iot edge deployment create to let user insert labels and metrics in key-value pair style
And also created the inline json wiki page https://github.com/Azure/azure-iot-cli-extension/wiki/Inline-JSON-help

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[Elsie4ever]

related integration test passed

[Elsie4ever]

related unit test passed

[digimaun]

related unit test passed

Thank you, unit tests run in the PR pipeline so you don't need to include those specifically

[c-ryan-k]

Just some nits around wording and how we present the help / params - otherwise looks good to me

[Elsie4ever]

pipline build link