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  [Destiny: git & github workflow] (https://github.com/plannifnminus1fails/destiny/wiki/Destiny:-git-&-github-workflow)

#Testing 

- [ ] Setup destiny repo at local as per above mentioned doc;
- [ ] Check all functionality is working like admin features, product page, signup, login