Piszkespipe

Updated version to maintain compatibility with `ccdproc`.

Debug: ignore spectrum in cross-correlation if there are no spectral lines (e.g. very low SNR)

- Bug fix:
- handle errors in Simbad query
- save correct target name, not only the first one
- get ride of Quantity after LA Cosmic applied
- New features:
- eliminate fortran dependence
- add toml file to setup code in separate environment

- Bug fix: if available flat frames are _always_ used
- New features:
- New simple blaze fitting (if there is no flat frame); can handle strong/wide emission lines
- colored warnings

New features:
- Handle interpolation of sparse ThAr times.
- New option to keep strong emission lines.

This is the first release of ``piszkespipe``.