Mo quakeml

More QuakeML parsed, thanks to @markhamnr. Also USGS GeoJson feeds.

What's Changed

• add fields to arrival by @markhamnr in #14
• parse more fields for pick and magnitude elements by @markhamnr in #15
• add fields to origin; add ID fields by @markhamnr in #16
• add amplitudes and station magnitudes by @markhamnr in #17
• add focal mechs by @markhamnr in #18
• add moment tensors by @markhamnr in #19
• add remaining fields (closes #13) by @markhamnr in #20
• eliminate some duplicate code by @markhamnr in #21

New Contributors

• @markhamnr made their first contribution in #14

Full Changelog: v3.0.0...v3.1.0