Remove trailing whitespaces from .lud files

[fbarbe00]

Purpose

Remove 143437 white spaces from ludii game files (human linter :) ) in dev

Specifications

Use simple python script:

for ludii_file in ludii_files:
    lud = open(ludii_file, 'r').read()
    n_lud = '\n'.join(line.rstrip() for line in lud.splitlines())
    # append a newline to the end of the file
    n_lud += '\n'
    open(ludii_file, 'w').write(n_lud)

[DennisSoemers]

Thanks. It turns out that Clobber no longer compiles with these changes. Apparently, options break if there is no whitespace after an (item line. I don't think this is intended though, probably we should look at fixing it on our end, but I'll hold off on the merge for now.