Do not set ROIs in image mosaic when not strictly necessary

Description

The current code builds ROIs for each granule regardless of whether footprint management or in-mosaic reprojection are needed, but jai-ext recent improvements make adding ROIs and processing them optional.
Not having the ROIs speeds up the entire chain past the mosaic during rendering, e.g., band merge/select, warp, color map, transparency management and the like.

Environment

None

Assignee

Andrea Aime

Reporter

Andrea Aime

Triage

None

Components

Fix versions

Priority

Medium
Configure