Add podaac layers to categories

[minniewong]

Description

Fixes nasa-gibs/worldview#1175 .

Assigned PO.DAAC layers from nasa-gibs/worldview#1123 to categories.

Checklist

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• I have read the CONTRIBUTING doc
• I have added necessary documentation (if appropriate)
• I have added tests that prove my fix is effective or that my feature works
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Further comments

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@nasa-gibs/worldview

[ZachTRice]

👍