Mathematical Alphanumeric Symbols

[TheChilliPL]

Deadkeys for mathematical alphanumeric symbols could be added.

Sadly, without multiple deadkey support (see #1), it'd all require a lot of deadkeys.

According to a table on Wikipedia:

• Serif letters
  • Normal letters (A–Z) [\mathrm/\mathup]
  • Mathematical bold (𝐀–𝐙) [\mathbf]
  • Mathematical italic (𝐴–𝑍) [\mathit]
  • Mathematical bold italic (𝑨–𝒁) [\mathbfit]
• Sans-serif letters
  • Mathematical sans-serif (𝖠–𝖹) [\mathsfup]
  • Mathematical sans-serif bold (𝗔–𝗭) [\mathbfsf]
  • Mathematical sans-serif italic (𝘈–𝘡) [\mathsfit]
  • Mathematical sans-serif bold italic (𝘼–𝙕) [\mathbfsfit]
• Script letters
  • Mathematical script (𝒜–𝒵) [\mathscr/\mathcal]
  • Mathematical bold script (𝓐–𝓩) [\mathbfscr/\mathbfcal]
• Fraktur letters
  • Mathematical Fraktur (𝔄–ℨ) [\mathfrak]
  • Mathematical bold Fraktur (𝕬–𝖅) [\mathbffrak]
• Mathematical monospace (𝙰–𝚉) [\mathtt]
• Mathematical double-struck (𝔸–ℤ) [\mathbb]

Before adding support for multiple deadkeys, we could prioritize some of these, like script letters, Fraktur letters, and double-struck letters.