[Feature Request]: Creation of a new wallet address

[Sankara-Jefferson]

What is the problem you're trying to solve?

As a Singularity User, I currently have to setup Lotus in order to create a filecoin wallet address. I need to export my private keys and then import both the wallet and private keys into Singularity's database before I can use it to create deals.

Describe the workaround you currently have

I don't have any workaround.

Describe the feature you'd like

I would like singularity to have an API and a command to create a filecoin wallet address and save it (together with it's private keys) into the database for me to use to create deals.

Acceptance Criteria

• Confirm creation of requisite database model (Actor Name, Wallet Address, Actor ID, Wallet Type, Status - (Active, Uninitialized), Created at, updated at)
• Confirm you can see and use a singularity wallet create command and a corresponding API
• Confirm you can create a new wallet address and that new wallet address with its private keys are saved in the database.
• Confirm that after initializing the wallet on chain, its Actor's ID is obtained and saved in the database.
• Confirm that the wallet address status changes from Uninitialized to Active
• Confirm that you can use it to create a deal schedule.
• Confirm you can remove the wallet both using the command and the API