pyband v0.2.8

Minor change from BandChain v2.3.0

• Added new proto message for new module authz and feegrant
• Remove MsgAddReporter and MsgRemoveReporter
• Publish .pyi files to include interface files to user

v0.2.7 (Laozi version)

Band Protocol is introducing a new implementation of pyband, supporting BandChain Laozi version. The library is redesigned to improve the usability and performance where the patterns of the old version is still remain. This new version uses protobuf to generate data, msg, and query type to connect to BandChain via gRPC protocol. The client module can now create stub for sending to Bandchain node that serve as gRPC server.