* lcms: extend to have double as source format
srcFormats of double was supported but never actually hit, which is due
to the bits in the srcFormat not actually being accurate, e.g.
T_BYTES(srcFormat) == 0 would never be satisfied. This includes in the
cms_transform_fuzzer. This is an effort to overcoming this.
* lcms: avoid timeouts by only running a single test per iteration
Fixes: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50723
* lcms: extend fuzzing suite
Add a fuzzer that target various output formats when transforming. There
are more oppournities to extend this further but will let this fuzzer
run for a while to see how it goes.
* nit