The snow kept falling Tuesday night in Granby. And the Middle Park Panthers kept fighting. In a back-and-forth Class 4A first-round playoff battle, No. 16 Middle Park edged No. 17 Green Mountain 16-15 in front of a home crowd to advance in the Colorado High School Activities Association boys lacrosse state tournament. The Panthers (11-4) fell behind 4-6 early after Green Mountain (6-10) put up a strong first quarter. Middle Park trailed 10-12 at…