Correct config for BitcoinZ 
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### Description

When adding BitcoinZ (Equihash 144,5) to Miningcore I cannot get the founder addresses populated without throwing errors when trying to launch the pool. (https://github.com/s-nomp/s-nomp/blob/master/coins/btcz.json) 

Has anyone else had experience with adding BitcoinZ to their miningcore pool?

### Steps to Reproduce

1. Add the relevant founder addresses. 
2. Launch pool
3. Observe errors.

### Expected behavior

Once the correct founder information is added the run should launch correctly. 

### Actual behavior

The pool crashes 

### Reproduces how often

100%

### Version

If you are using released version, please state your version.
If you are using clone from `dev` branch, please state commit hash of your copy.
Also, please include the OS name and version you're currently running.
Ubuntu 16.04 Server


### Additional Information

Any additional information, log, configuration or data that might be necessary to reproduce the issue.
