tricks to allow easymotion recognize Chinese chars

e.g. <plug>(easymotion-s) + w would match 我 握 etc

How to use

Plug 'easymotion/vim-easymotion'

" must after easymotion plugin
Plug 'ZSaberLv0/vim-easymotion-chs'

NOTE:

not work for <Plug>(easymotion-s2) series

see also:

:h g:EasyMotion_use_migemo

easymotion/vim-easymotion#135

easymotion/vim-easymotion#145