Improve project structure

[omkarkhair]

Improve project structure to have build app in root. This would accommodate easier deployments of Dapps.

Sample project structure

.
|── src
|     |── contracts
|     |── config
|── js
|     |── app.js
|── index.html
|── wasabi.js
|── contracts.json

During deployments, .gitignore can be configured to exclude src.

[omkarkhair]

Instead, doing...

.
|── src
|     |── contracts
|     |── config
|── js
|     |── app.js
|     |── wasabi.js
|── index.html
|── contracts.json