toasty 0.11.0

toasty 0.11.0 (2021-09-17)

• Fix up toasty tile-study to handle FITS files properly (@pkgw, #61). The
  input must be in a tangential projection, and only some basic data layouts
  within the FITS container are supported. The --placeholder-thumbnail option
  also must be used.
• Fix an off-by-one error in the computations used by toasty tile-multi-tan
  (@pkgw, #61)
• Improve some internal APIs for processing studies.