Dbscripts

Updated such that `DBScripts` instances have a straightforward method and an append method that handles the private dependency attribute. Populates dependencies for each script in the instance when calculating now.

**Full Changelog**: https://github.com/Catterall/dbscripts/compare/0.3.12...0.1.36

Updated to use Khan's topological sort for dependencies rather than recursion, as well as a few bug fixes (mainly regex issues) and a cleaner implementation that is more flexible to future additions. You can now determine an appending strategy for `DBScripts` instances, get the schema of `DBScript` instances, and more.

**Full Changelog**: https://github.com/Catterall/dbscripts/compare/0.1.0...0.3.12

- Optimized `calculate_dependencies` to be about ~33x faster.
- Now supports `for x in self` rather than `for x in self.scripts` for `DBScripts` instances.
- New `get_dependents` method on `DBScripts` instances.

**Full Changelog**: https://github.com/Catterall/dbscripts/compare/0.1.32...0.1.4

The initial release of the `dbscripts` package.

**Full Changelog**: https://github.com/Catterall/dbscripts/commits/0.1.0