Easycrystallography

Changes
- Update xarray requirement from <0.20,>=0.16 to >=0.16,<0.21 dependabot (2)
- Update pint requirement from <0.18,>=0.17 to >=0.17,<0.19 dependabot (3)

🚀 Features

- Prepare for v0.1.0 release wardsimon (5)