Python-amazon-paapi

**New features:**
* Added new parameters to product info.
* Added raw data unparsed from the API.

**Major changes:**
* New structure for product info.

**Minor changes:**
* Updated readme and added product structure guide.

**New features:**
- Added support for getting multiple product information.
- Added compatibiliy with Amazon URL search.
- New function for getting the ASIN for a given URL.

**Major changes:**
- Removed Amazon SDK and added as a requirement.

**Minor changes:**
- Updated docstrings.
- Updated README with changelog, more examples and badges.