runtime(odin): include ftplugin, syntax and indent script (vim/vim#13867)
211211052d
Translate the files from Vim9 script to legacy Vim script. Notably:
- Prefer case-matching comparisons where needed.
- Save and restore `&cpo`.
- Make the functions script-local. (Pretty easy to use these in expr options now
since Vim 9.0 anyways)
Add a note after the header for each file stating that they're manually
translated.
Co-authored-by: Maxim Kim <habamax@gmail.com>
