Fixed bug reading cif and mmcif files

• There was a bug that caused a crash when reading cif and mmcif files, and potentially some other formats. It has been fixed throughout.
• The standard error for properties were missing a commma in the property name. The comma is standard elsewhere in SEAMM so add it here: ', stderr'

Handling OpenBabel error messages for MOPAC .mop files

Hiding messages about errors Kekulizing structures, which doesn't seem to be a serious issue, and printing any other messages as warnings.

Updated for the new, open source MOPAC

Merge pull request #35 from molssi-seamm/dev

Updated for new open source mop and properties

Improved handling of SDF files

Added reading & writing properties, better handling of multiple structures, and ability to directly use gzipped files.

Improved handling of MOPAC .mop files

Merge pull request #33 from molssi-seamm/dev

Improved handling of MOPAC mop files.

Better printing when reading CIF files.

Merge pull request #32 from molssi-seamm/dev

Printing any extra information from the CIF file reader.

Bugfix for relative paths

Fixed an issues with relative paths for files, ie '~/file.xyz'

Bug fix: error reading MMCIF files.

What's Changed

• Fixed bug reading from mmcif files. by @paulsaxe in #30

Full Changelog: 2022.5.7...2022.5.23

Improved support for CIF and MMCIF files.

Handle non-periodic mmcif files, including ones with NMR ensembles.

Adding space group symmetry to output

Handling space group symmetry when reading CIF files, and adding it to the output.
Also generally cleaned up and improved the output.