kv
A simple key-value store. Helps you in storing urls and other misc.
Usage
```
kv set es_url https://prd.es.hyperngn.com
^ 0 exit code and no output
kv get es_url
^ 0 exit code with following output on
https://prd.es.hyperngn.com
kv del es_url
^ 0 exit code and no output
kv list
^ 0 exit code with following output on
es_url\thttps://prd.es.hyperngn.com
```