Fix store and allow for hooks at multiple levels of config @mcalhoun (#1112)
## what- Fix a bug where the SSM store was not properly marshaling values to/from JSON
- Fix a bug where you couldn't specify hooks at the root configuration level
- Update tests to ensure these cases are working
why
- Non-string values weren't working properly when being stored in SSM
- We need to provide prescriptive guidance with how to configure hooks/stores with our reference architecture
Update Atmos help and double dash flag description @samtholiya (#1111)
what
- Updated Atmos help and double dash flag description
why
- Improve Atmos help and UX
Add Codecov to Report Test Coverage @Cerebrovinny (#1101)
what
- Add Codecov to Report Test Coverage
why
- Goal is to progressively increase test coverage by requiring 80% test coverage on new code