feat(customOutDir): added options inside added option inside fireConfig to specify folder explicitly for out dir .packages

[Stradivario]

Issue

Description

Added option inside fireConfig to specify out folder for .packages and the name of the folder

Type of change

• [x] Non Breaking change

Checklist:

• [x] Added example folder
• [x] Modified the injection tokens for getting the default value of .packages
• [x] Now we can modify the actual folder where .packages is saved and the name of it
• [x] Removed deprecated exists from fs and added custom function using stat