-------------------
Enhancements
^^^^^^^^^^^^
* Four encoding methods added to `GenotypeArray`: `encode_additive`, `encode_recessive`, `encode_dominant`,
and `encode_codominant`
* A `genotype` Series accessor has been added. Thus far it includes the encoding methods.
* Variants now track which allele is considered the reference allele
Tests
^^^^^
* I/O Tests are added for Plink and VCF. Note that VCF requires htslib, so tests are skipped on Windows
* Encoding tests added
Docs
^^^^
Improved.