v1.3.0

Full Changelog: v1.1.1...v1.3.0

v1.3.0 feature additions

• add render argument, possible values:
  • irc, ansi, ansi24
  • obsoletes --irc, --ansi and --ansi24
• add blocks argument for control over glyphs used in output:
  • full, half, quarter, eighth, triangle, corner, geometric, box, legacy
  • obsoletes --hb and --qb
• switch to unicode-to-bitmap mapping for glyphs, enabling arbitrary shapes and higher resolution
• implement fast, tolerance-based palette matching with caching for improved colour reproduction
• consolidate draw logic into a single rendering pipeline for all ansi and irc outputs
• add command-line tools for generating glyph bitmaps in src/chars.rs