v0.1.0 - Initial binary release - image support

This initial release of rustronomy-fits includes the following features:

all platform-specific libraries have been statically compiled.

• reading fits headers (incl. pretty console output)
• reading image data sections from the primary header and extensions
• parsing image data from fits files to computation-ready ndarrays
• writing already-existing fits files to disk

Note that even though writing FITS files from memory to disk has been implemented, this only works for FITS files that already conform to the FITS standard. No features for creating standard-compliant FITS files from ndarrays or individual HDU's are included in this release.