Log Message:
spleen: update to 1.8.2.

Spleen 1.8.2 (2020-07-31)

- Fix size of the lower case 'ae' character in the 16x32 and 32x64 versions
- Fix size of the lower case 'oe' character in the 16x32 and 32x64 versions
- Add 'AE' and 'ae' characters with acute accent
- Add 'AE' and 'ae' characters with macron
- Add 'A', 'a', 'E', 'e', 'I', 'i', 'O', 'o', 'R', 'r', 'U', 'u' with
  inverted breve
- Add 'A', 'a', 'O', 'o' characters with dot above
- Add 'O' and 'o' characters with ogonek
- Add 'O' and 'o' characters with ogonek and macron
- Shorten parentheses, square brackets, braces, slash, backslash in the
  8x16 version, fixing alignment issues
- Shift vertical line and double vertical line characters one pixel
  up (8x16 version)