Unit aware linear algebra

[erikerlandson]

My explorations of unit analysis for matrix and vector math are promising:
http://erikerlandson.github.io/blog/2020/05/01/unit-analysis-for-linear-algebra/

Not sure what the best vehicle is, maybe Spark Dataset as the representation for "tabular matrix".

See also #50

[erikerlandson]

some other posts on this topic:

• https://erikerlandson.github.io/blog/2020/05/06/unit-analysis-for-linear-regression/
• https://erikerlandson.github.io/blog/2020/05/23/some-unit-signature-results-for-matrix-inversions/
• https://erikerlandson.github.io/blog/2022/08/12/a-unit-analysis-of-matrix-inversions-and-svd/