Add license scan report and status

[fossabot]

trafficstars

Your FOSSA integration was successful! Attached in this PR is a badge and license report to track scan status in your README.

Below are docs for integrating FOSSA license checks into your CI:

• CircleCI
• TravisCI
• Jenkins
• Other

[cla-checker-service[bot]]

❌ Author of the following commits did not sign a Contributor Agreement: 83000e567f41d1913d9da73de2153557eb37377b

Please, read and sign the above mentioned agreement if you want to contribute to this project