### What problem does this PR solve?

delete SDK repo and edit readme

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

Added delete_dataset method and test for it.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

### What problem does this PR solve?

Add create_dataset method, test for it, and update SDK->sdk.

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

Signed-off-by: cecilia-uu <konghui1996@163.com>