Genoml2

This release has addressed a few issues:
- Issue 12: [Experimental] fix to using tuned models to test unseen, harmonized data
- Issue 16: Users now have more control to adjusting without reducing if desired, and choosing to normalize after adjusting if desired
- Issue 17: Users can now control stringency of r^2 value when pruning with PLINK using the `--r2_cutoff`

The README has been updated to reflect these changes better, please report any issues to the GitHub issues page!

Implementing a "global adjuster" - flags in the munging process to account for additional covariates and confounders you would like to adjust for. This comes from feature request/issue 11 - Adjust genotypes for tSNE/UMAP/PC loadings.

Addressing issue 13 - next release might not be for a while!

Minor update - This release resolves issue 14

This is the first release of the GenoML2 (genoml2) package!