Volttron-lib-modbus-driver

What's Changed
* Docs by davidraker in https://github.com/eclipse-volttron/volttron-lib-modbus-driver/pull/7


**Full Changelog**: https://github.com/eclipse-volttron/volttron-lib-modbus-driver/compare/v0.1.1a1...v0.2.1rc0

What's Changed
* Updates to tests by davidraker in https://github.com/eclipse-volttron/volttron-lib-modbus-driver/pull/5

New Contributors
* davidraker made their first contribution in https://github.com/eclipse-volttron/volttron-lib-modbus-driver/pull/5

**Full Changelog**: https://github.com/eclipse-volttron/volttron-lib-modbus-driver/compare/v0.1.1a0...v0.1.1a1

What's Changed
* Update infra by bonicim in https://github.com/VOLTTRON/volttron-lib-modbus-driver/pull/1

New Contributors
* bonicim made their first contribution in https://github.com/VOLTTRON/volttron-lib-modbus-driver/pull/1

**Full Changelog**: https://github.com/VOLTTRON/volttron-lib-modbus-driver/commits/v0.1.1a0