v1.0.79

feat/Date types and bug fixes (#123)

## Description
<!-- Provide a brief description of the changes in this PR -->
Bug fixes for missing remapping vals init if params were empty. 
implemented date type for variables and `NOW` key word (only available
for default date in schema)

## Type of Change
<!-- Mark the appropriate option with an "x" -->

- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] Documentation update
- [ ] Performance improvement
- [ ] Code refactoring
- [ ] Other (please describe):

## Related Issues
<!-- Link to any related issues using #issue_number -->

Closes #

## Testing
<!-- Describe the tests you ran and how to reproduce them -->

- [ ] Unit tests added/updated
- [ ] Integration tests added/updated
- [ ] Manual testing performed

## Checklist
<!-- Mark items with "x" when completed -->

- [ ] My code follows the style guidelines of this project
- [ ] I have performed a self-review of my own code
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] I have made corresponding changes to the documentation
- [ ] My changes generate no new warnings
- [ ] Any dependent changes have been merged and published

## Additional Notes
<!-- Add any additional information that would be helpful for reviewers
-->