Implement greater functionality in the CTRL-W keys

[plbowers]

Improved window splitting is now available. Vim emulation should be correspondingly improved.

ctrl-w j
ctrl-w k
ctrl-w +
ctrl-w -
ctrl-w <
ctrl-w >
ctrl-w c

[jpoon]

Dupe of #2696? In going through that list, most of the keybindings are already supported.

In an effort to keep the issue count sane, I'm closing this issue, but feel free to re-open if there is something we are missing.

[Swoorup]

Came here looking for Ctrl-W s (horizontal split)? That is not working. Didn't bother to create a new issue since it was already reported before.

[sdiprizio]

In macOS :
<C-w>v works as in neovim (keep Ctrl pressed, press w, press v), open a new vertical tab.
<C-w>s does not work, you have to press <C-w>, release keys and then press s.

Probably because <C-w>v is interpreted as <C-w><C-v> by vscode. Both bindings exist in vscodevim (in package.json). <C-s> binding does not exists in vscodevim, and is ignored.

Adding :

{
        "key": "ctrl+s",
        "command": "extension.vim_ctrl+s",
        "when": "editorTextFocus && vim.active && vim.use<C-s> && !inDebugRepl"
}

in "contributes" > "keybindings" section of package.json "fix" the issue.

Committed modifications on a fork, should I do a PR (npm test passed) ?
https://github.com/sdiprizio/Vim/commit/1791f2f962caa4dd4d05d1b6953f35032d15ed40