make blobber ID mandatory in sdk.GetStakePoolInfo

[boddumanohar]

Changes

blobber_id field is actually mandatory for sp-info. But if I dont provide any blobber, it takes client ID as default blobber_id. This is incorrect. Since blobber_id is necessary, we should take it from command line arguments.

Fixes

Tests

Tasks to complete before merging PR:

• Ensure system tests are passing. If not Run them manually to check for any regressions 📋
• Do any new system tests need added to test this change? do any existing system tests need updated? If so create a PR at 0chain/system_test
• Merge your system tests PR to master AFTER merging this PR

Associated PRs (Link as appropriate):

• blobber:
• 0chain:
• system_test:
• zboxcli: make blobberID field mandatory for sp-info command zboxcli#307
• zwalletcli:
• Other: ...

[cnlangzi]

LGTM