Add Time In Transit API
update composer.json
Add Rates and TimeInTransit related entities
test new username commit
update address entity
Update main class return
upadte readme.md
add LabelRecovery class
Ad QuantumView entities
Update README.md

**getRate($shipment)** is working now though. But the **Rate** class is finished and ready for flexible use. So for temporarily we can write this for user who want to use this for their own.
Cleaned read-me