Merge pull request #107 from nisarnk/cleanup_code

Migrate tooling configuration from setup.cfg to pyproject.toml

Helpers for fccd, dark image search, and automation for PaperMill

REL: v0.1.18

Include *.h and *.c files into the `sdist` package.

REL: v0.1.17

- `get_fastccd_flatfield` kwargs added.
- Docs clean-up.
- Updates to the packaging/versioning configs.

REL: csxtools v0.1.15 (fix the databroker usage)

version 0.1.14

REL: v0.1.13

Updated with timestamps