Implement state machine

Implement state machine for water and sprinkler firmware

fix agent callback keys

Merge pull request #2 from humayunj/sysenv-fix

Dynamic env variables Initial fix

include arduino sprinkler firmware

v0.0.3

style(pyproject.toml): target for py38

Watch beta

v0.0.2

feat(node_sonar/src/main.TCA9548A): return if address > 7

initial version

v0.0.1

feat(nano_custom > nano_sonar):  update nano custom firmware