Updated Bio-Formats to 4.4.9

4.4.9 was released recently. Updating to use it, as it includes bug
fixes.
Remove unnecessary try/catch

There was no reason to preserve the return value here. Throwing the
exception is much more helpful, as it just gets printed in C++.
Accommodate floating point data & endianness

The read method will now process the read bytes via DataTools, allowing
normalization for big endian and floating point data. Previously, these
pixels were read incorrectly.
Wrap readers with ChannelFiller

Added ChannelFiller wrapping to createReader method.

ChannelFiller operates on (exclusively) indexed color images and there
is no corresponding flag in ITK. Thus it is necessary to properly read
indexed images.
Applied style template

Used the ITK style template to standardize style. No semantic changes.