As a user, I want to see the identity related business

[wliyongfeng]

Statescan will support relay chain business. The main explorer will be separated by businesses. Identity is one popular feature of kusama/polkadot, and user may want following features:

• Check my account identity history, basic info, sub-identities, parent-identity, etc
• Check my identity registration/judgement status
• See registrars
• Search accounts by identity info
• Do identity related operations
  • Registration
  • Request judgement
  • Add sub ids
  • Cancel request

[wliyongfeng]

@hyifeng will be the master of this story, @wliyongfeng and @Popoulosss will also help. We design the user features first, then discuss with @Popoulosss for the design.

I hope this feature will be one of our bounty program.