[Feature] implement vim-surround

[ronnac]

Describe the feature you'd like
Surround a text object with parentheses, brackets, tags, quotes etc, e.g.
ysiw" = surround entire word with double quotes

[kbilsted]

how should this be implemented? win-vind won't know what is on your current line.

Perhaps it could select the whole text, replace it, and move the cursor - but it would entail some flickering