Release v0.3.0

What's Changed

• Feat/typing by @galenlynch in #26
• typing: annotate return types for ants transforms by @galenlynch in #32
• typing: use type aliases in ants.py by @galenlynch in #33
• Add module to calculate domain and produce transform metadata by @galenlynch in #34

Full Changelog: v0.2.0...v0.3.0