Support SDF File

[tshauck]

V0 Read SDF file

• single molfile (feat: molfile record parser #553)
• single molfile + data (i.e. sd record) (feat: include data in sd file parsing #555)
• entire file parser (feat: add sd reader #556)
• SDF to arrow batches (feat(sdf): array and batch reader #562)
  • schema builder
  • batch reader
  • array builder
• exon integration with table factory

V1

• Support arbitrary types and fields in Data
• More robust testing of various SDF files
• Add benchmarks
• Refactor record to lazy record (just bytes) and "hydrated" record.

format docs: https://www.daylight.com/meetings/mug05/Kappler/ctfile.pdf