v0.5.0

• Made stam-tools available as a library alongside the stam CLI tool. Note however that this Rust API is not considered stable yet and may be subject to change.
• stam query: implemented output to W3C Web Annotation via --format w3anno parameter.
• stam view:
  • make tags togglable
  • show popups when tags are hidden
• stam align: new tool to align two texts (or parts thereof) using Smith Waterman or Needleman Wunsch, results in transposition annotations complying to the STAM transpose specification
• stam query: allow outputting existing transpositions or other alignments using the --alignments parameter. This outputs to a simple TSV format and is currently limited to two-sided alignments (rather than multiple).