do not emit frames as part of test case
make sure same 32 bit value is pass, move load of rgb value earlier into loop
declare function and fixup LOGGING statements
add disabled grayscale test, move unpremultiply logic into movdata module from moviemaker
add premultiply table tests
add test that will premultiply and then reverse the operation
rework premultiply test to deal with case of zero alpha
reimplement premmult test to init the table and make sure the results match
extra check for error where table was not initialized