Omar Shrit

Add @rcurtin suggestions to this PR

Docs: Adding arch names in a table

1

Simple page to be reviewed and merged only after merging #3774

Headers bits

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no description is needed, just a self-explanatory proposal

Add header support using armadillo csv load function

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This PR's objective is to use armadillo csv load functionality directly and remove the one we have internally. Armadillo function seems to be slightly faster in the benchmark, 0,4 seconds...