Crash in 1.47 for panorama photo mode if a new photo is taken when a previous panorama is still being processed; update testTakePhotoPanorama() to test this.

Crash in 1.47 when saving photo with SAF and geotagging, when using Camera2 API; new testLocationOnSAF().

Downscale panorama bitmaps whilst loading, to help memory requirements (e.g., for running on Nexus 7).

Saving base images: should always be 100% JPEG quality for NR; and use PNG for panorama base images; also disable various post processing options for base panorama images.

Split testPanorama28 into testPanorama28_galaxys10e, test to similar sets of images stored as PNGs, to test stability.

Fix bug in blending due to cropping, need to shift blend windows for crop_x0. Affects testPanorama6 and testPanorama28.