Fix broken filenames for cropped images

makeAndInsertUri() was missing the filename prefix and ended up
creating filenames like '_20160518_170242.JPG'.

getNewFile() already does most of what we need to handle PANO and IMG
prefixes. Modify it to accept a time argument and use that instead.

CYNGNOS-2877

Change-Id: I593be63d43b18efbae134c10b59921498d48df8f
1 file changed