added tests for fits8 and fits16
added tests for fits8 and fits16

riginding/dora,dinfuehr/dora,riginding/dora,dinfuehr/dora,dinfuehr/dora,riginding/dora,dinfuehr/dora,riginding/dora,riginding/dora,riginding/dora,dinfuehr/dora,dinfuehr/dora,riginding/dora