audiowmark 0.6.2

Overview of Changes in audiowmark-0.6.2:

• improved robustness of the watermark detection a lot for many cases
• improved handling if more than one key needs to be used for detection
  • support using --key multiple times for audiowmark get
  • support naming watermark keys (key name defaults to filename)
  • extend JSON and regular output to report key name for matches
• merge architecture documentation for developers written by Tim Janik (#49)
• support RF64 output (--output-format rf64) for huge wav files (#30, #2)
• use hann window function to improve robustness/quality for some files (#48)
• fix building against zita-resampler installed in non-standard location (#39)
• replace sprintf with string_printf: sprintf is deprecated on macOS (#33)
• fix build errors related to PRNG on new clang compilers (#29)
• fix problems in videowmark due to command line option ordering (#23)