Issue 5

Added ability to add new pools on the fly.
At this time it just ADDS NEW POOLS, it does not actually reload pools, confusion may come since I used the existing `reloadpool` message that was already there...

**Simple usage steps**

**1)** Add coin config file `[coinname.json]` to `coins`

**2)** Add pool config file `[coinname_pool.json]` to `pool_configs`

**3)** `cd scripts`

**4)** `node cli.js reloadpool [coinname]`
Where `[coinname]` is the value given in `[coinname.json]` at `"name": "HERE"`

Please test on a testing environment, not on your production pool, just in case.

This Issue has a bounty here: https://www.bountysource.com/issues/1588495-adding-pool-on-the-fly