ezomero 2.0.0 - many small fixes, API change on `Shape`s

PR #69 breaks backwards compatibility, so 2.0 it is!

What's Changed

• defaults for shape colors and width (plus cleanup) by @erickmartins in #64
• changed license to GPLv2 by @erickmartins in #70
• moving fill_color, stroke_color and stroke_width to be Shape attributes by @erickmartins in #69
• Removed 'from attr import dataclass' from tests by @govekk in #72
• Fix duplicate documentation (Issue 68) by @govekk in #71
• bump to 5.13.1, fix for SSL by @erickmartins in #76

New Contributors

• @govekk made their first contribution in #72

Full Changelog: 1.2.1...2.0.0