dgpost pre-release 2.0rc1

What's Changed

• Move rdkit-pypi dep to rdkit by @PeterKraus in #54
• Fix nans in electrochemistry.fe, this time properly. by @PeterKraus in #55
• Implement version checking. by @PeterKraus in #56
• Rework documentation by @PeterKraus in #57
• save: sort columns in xlsx and csv exports by @PeterKraus in #58
• reflection: Implement reflection coefficient postprocessing functions by @PeterKraus in #59
• table.set_uncertainty: Implement stripping and setting uncertainties from data by @PeterKraus in #60
• Create codeql.yml by @PeterKraus in #62
• transform.chromatography: Module for processing chromatographic traces. by @PeterKraus in #61
• Minor fixes by @PeterKraus in #63

Full Changelog: 2.0a4...2.0rc1