💗Implementation of clevef-F plugin

[Mr-peipei]

What this PR does / why we need it:

This plugin is so amazing!!!!🎊 clever-F is a more advanced version of the f and F command!. This plugin was created with reference to the following vim plugin. rhysd/clever-f

But I didnt implement t and T command. Because I felt it was better to implement it step by step.

And I add a clever-F test! All test is clear.

If you hava any question, please add a comment in this PR.

Which issue(s) this PR fixes

implement #5272

Special notes for your reviewer:

If you want to check and test this plugin, please read readme.md that i add a explanation of clever-f and enable it.

[elazarcoh]

Thanks for the implementation! I pulled it into my custom VSCodeVim build I'm using for my everyday work, as it seems very useful!
I have a little issue with it. It seems to break on some special characters, e.g. f[, where without the plugin it worked as expected.

[elazarcoh]

Hi, I noticed operators are failing now (dfa for example). I think disabling the clever-f on operator pending might be the correct solution for it.

Thanks again!

[d1y]

Amazing! Looks great, looking forward to merging it into the main branch 🔥

[jensenojs]

+1

[Mr-peipei]

I thought this PR will not be reviewed for a while, so I stopped to repair this PR. Is there still demand this PR?