AWS Ecs impl changes

commit 581ebd8c Author: Rucha Deshpande deshruch@amazon Date: Thu Aug 13 2020 16:23:55 GMT-0500 (Central Daylight Time)

copyright year added

commit fe2b2a67 Author: Matt Wise wsmatth@amazon.com Date: Thu Aug 13 2020 13:27:09 GMT-0500 (Central Daylight Time)

add copyright/license notices to files modified in this branch

commit 482c9508 Author: Rucha deshpande deshruch@amazon.com Date: Sun Aug 09 2020 17:09:09 GMT-0500 (Central Daylight Time)

entitlements on ecs update