Added conracts on te acces api Account entity (onflow#67)

Update docs/access-api-spec.md

Co-authored-by: Vishal <[email protected]>

Add BlockTimestamp to EventsResponse (onflow#41)

Add BlockTimestamp to EventsResponse

Add CC attribution notice

Access API: Add transaction arguments (onflow#12)

* protobuf: Add arguments field to Transaction entity

* Access API: Add transaction arguments to Access API spec

* Regenerate execution.pb.go

Create bug-report.md

Merge pull request onflow#13 from dapperlabs/transaction-format-v2

Revised transaction format

Merge pull request onflow#10 from dapperlabs/transaction-format

Access API: Update transaction format to include signers & sequence numbers

Update access-api-spec.md