Feature create seperate repo for products package 16

#16 
#14 

* Destiny repo is development ready; created a new package `products` at `packages/custom/products`
* Prepared doc for  [Developer Workflow] (https://github.com/plannifnminus1fails/destiny/wiki/Developer-Workflow)

#Testing 

- [x] Setup destiny repo at local as per above mentioned doc;
- [x] Check all functionality is working like admin features, product page, signup, login