Pre-release 0.0.1

• Added converter feature.
  • Class ImgConverter and HexConverter
    • Convert between glyph pixel data and Unifont .hex format string.
    • Supports different image formats.
      • White as 0, black as 1 (Official).
      • Transparent as 0, white as 1 (Minecraft).
    • Supports printing Unifont glyphs to the console.
      • Able to display hexadecimal and binary strings on the left at the same time.
    • Supports saving Unifont glyphs as PNG images.