TMI-TIFF: Added more constants + debugging code for field names + suppressed unwanted warnings.
TMC-XXXX: Added constructor exposing fast rendering flag.
TMI-CORE: Added zoom in/out/actual to image display, moved background to submenu.
TMI-TIFF: Now supports YCbCr subsampled images with image/tile/strip width/height not a multiple of the x/y subsampling. More lenience for weird subsampling.
+ Some minor house-keeping with no functional change.