Added 'ee4 list' command

[dharmin]

Fix #32

[mbtamuli]

Escape characters showing up.

> ee4 list
\e[1;31mNo sites have been created.
-----
> ee4 list

\e[1;32mList of Sites:

\e[1;38;5;25mexample.com
notasite
simplefolder
zzz.test

[mbtamuli]

@dharmin Currently it is displaying even text files and random directories in the webroot.
Use find to only filter only (1)directories which (2)contain a docker-compose.yml file.

[mbtamuli]

At the current state, it correctly lists sites only, but output is wrong.

> ls -al
total 0
drwxr-xr-x  6 rtc 192 Feb 13 12:40 .
drwxr-xr-x 14 rtc 448 Feb 13 12:53 ..
drwxr-xr-x  7 rtc 224 Feb 13 12:38 example.com
drwxr-xr-x  2 rtc  64 Feb 13 12:39 notasite
drwxr-xr-x  2 rtc  64 Feb 13 12:40 test
drwxr-xr-x  7 rtc 224 Feb 13 12:40 zzz.test
> ee4 list
List of Sites:

examplecom
zzztest

It removes the period.

[dharmin]

Fixed. Used cut command instead of tr to fix it

[mbtamuli]

LGTM