atomistics 0.0.7

What's Changed

• Update pylammpsmpi to 0.2.3 by @jan-janssen in #44
• Use Coveralls Github action by @jan-janssen in #46
• Add calculator for siesta by @jan-janssen in #24
• Call LAMMPS with explicit arguments to clarify the task conversion by @jan-janssen in #49
• Tests: Rename structure_dict to task_dict by @jan-janssen in #51
• Add minimal test environment by @jan-janssen in #53
• Fix LAMMPS unit tests by @jan-janssen in #52
• Add langevin by @jan-janssen in #54
• Implement structure optimization protocol by @jan-janssen in #50

Full Changelog: atomistics-0.0.6...atomistics-0.0.7