Add ability to add gene metadata to the data (based on common identifiers).

[eve-syrkin-wurtele]

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Add ability to add gene metadata to the data (based on common identifiers). This could be either after a project is made (analogous to "add metadata") and/or when first making the project. (This feature existed before, and was removed quite a while ago)

It is really useful because frequently the data supplied has no or incomplete information about each gene. that info is key to a biologist using MOG

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