Add a helper package: no-evil-eol-newline

[b1f6c1c4]

I'm selling my atom package no-evil-eol-newline (also on GitHub.) Introduction is copied here.

Suppress display of end-of-file newlines as blank lines.
A temporal fix for Atom issue 7787.
More precisely,

• If a file ends with a \n, then the line number of the 'new line' is hidden (by css), just like what vim does.
• If a file doesn't end with a \n, then the line number is shown in a bright color, indicating a missing \n.
• Files that use \r\n as EOL simply work perfectly.

Attention:
This package only deals with how things appear: it never modify any bit of your file content. Thus, this package:

• Is compatible with whitespace, editorconfig, and other packages.
• Works consistently on Linux, macOS, and Windows.

BTW, I'm wondering if I should add it to ListOfVimModePlusPlugins and DifferencesFromPureVim.

[b1f6c1c4]

Edit: I added it to ListOfVimModePlusPlugins and DifferencesFromPureVim. Still waiting for README.md