Removed documents from repository and README modified to link online documentation

README.md

docs/images/flows/01 - Register of AEF.png

docs/images/flows/01a - Register (Only) AEF.png

docs/images/flows/01b - Register of AEF GetAuth.png

docs/images/flows/02 - AEF API Provider registration.png

docs/images/flows/03 - AEF Publish.png

docs/images/flows/04 - Invoker Register.png

docs/images/flows/04a - Invoker (Only) Register.png

docs/images/flows/04b - Invoker Register GetAuth.png

docs/images/flows/05 - Invoker Onboarding.png

docs/images/flows/06 - Invoker Discover AEF.png

docs/images/flows/07 - Invoker Create Security Context.png

docs/images/flows/08 - Invoker Get Token.png

...es/flows/09 - Invoker Send Request to AEF Service API.png

docs/images/robot_log_example.png

docs/images/robot_report_example.png

docs/test_plan/README.md

docs/test_plan/api_access_control_policy/README.md

..._control_policy/service_api_description_post_example.json

docs/test_plan/api_auditing_service/README.md