v0.4.7

BiochemicalAlgorithms v0.4.7

Diff since v0.4.6

Merged pull requests:

• Atom: fix no parent found (#157) (@anmabu)
• Backports 0.4.7 (#158) (@tkemmer)
• FileFormats: fix missing import for write_mmcif (#160) (@tkemmer)

Closed issues:

• Atom: get_full_name throws error if no parent molecule is found (#156)
• write_mmcif fails due to missing import (#159)