Consider adding UMAP analysis

[cleme]

Is your feature request related to a problem? Please describe.
Microbiome data is compositional, which can often lead to biases when using traditional ordination techniques.

Describe the solution you'd like
Consider if we should add UMAP, following https://journals.asm.org/doi/10.1128/mSystems.00691-21

[adamcantor22]

We now have access to UMAP as well as TSNE (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7767995/). These are in the latest install of qiime2, accessible with ml qiime/2022.11. Trivial to add to pipeline if desired.