Dup POIs, DA Thresh, WBs

Closed Bock, Andy requested to merge abock/gfv2.0:Bock into main

-Fixed most occurences of dup POIs related to these issues : #114 and #93 -Created flags for notification of duplicate POIs in reference and refactor (users need to look at those themselves and decide what to do) -Increased DA-thresh for agg_cats to 3 sq. km, successfully ran over CONUS for refactor and aggregate -Modified WB inlets and outlets. Issues were primarily with NHD HR derived POIs

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