plot bitinformation for types other than float32

[observingClouds]

ToDo

• support float16 and float64
• support integer types
• allow plotting of datasets with different types (potentially splitting the figure to have meaningful xaxis labels)
• add crop argument to show only a specific number of bits
• join figures of each data type into a single subfigure plot
• check if all functions can handle the new data type dimensions
• add tests

[milankl]

I'd probably suggest to have a max=32 keyword argument because you rarely want to see all 53 mantissa bits of float64... and it's a hassle to make the labels readable