Integrate create topic

[suyash-naithani]

Things to do:

• Remove code that is no longer needed
• Get the available partition limit with the correct api call(Static data is used currently)

[riccardo-forina]

I'd try to simplify the body of the CreateTopic component. All those const could be moved out of the function. The saveTopic callback should be split in sub functions - one to convert the data, one to call the API, one to update the UI based on the API result - and moved out of the body of the function as well (but for the one that does update the UI)

[suyash-naithani]

I'd try to simplify the body of the CreateTopic component. All those const could be moved out of the function. The saveTopic callback should be split in sub functions - one to convert the data, one to call the API, one to update the UI based on the API result - and moved out of the body of the function as well (but for the one that does update the UI)

Pushed some changes, let me know what you think @riccardo-forina