This is a bug fix to my initial work when implementing
batch_delete_image. Deleting the last tag for a given image should
delete the image from the backend.
I also cleaned up the tests previously-added in the initial
implementation.
* Created test for get_policy with AWS managed policy.
* Created failing test for get_policy_version with AWS managed policy.
* Updated AWS managed policies.
* Fixed failing tests.
* Fixed trying to compare datetime with string in test case.
* Fixed CreateDate of AWS managed policies overwritten by their version's CreateDate.
* Fixed and improved tests for managed AWS policies.
* Added test for AWS managed policy with v4 default version.
* Fixed not correctly returning dates for AWS managed policies.
* Removed Tags field from create_subnet response.
* Added DefaultForAz to create_subnet response.
* Added MapPublicIpOnLaunch to create_subnet response.
* Added OwnerId to create_subnet response.
* Added AssignIpv6AddressOnCreation field for create_subnet and describe_subnet and implemented setting it in modify_subnet_attribute.
* Added SubnetArn to create_subnet response.
* Added AvailabilityZoneId to create_subnet and describe_subnet responses, and error for invalid availability zone.
* Added Ipv6CidrBlockAssociationSet to create_subnet response.
* Added missing fields to describe_subnets response.
* Added myself to list of contributors and marked describe_subnet as implemented.
* Fixed linting errors.
* Fixed blank line containing a tab.
* Fixed accidentally deleted ).
* Fixed broken tests.
* Fixed a bug where default network ACL entries could not be deleted.
* Implemented throwing error when a network entry with the same rule number and egress value already exists.
* Fixed syntax errors.
* Added socket.timeout to possibly raised exceptions in wait_for for Python 3.
* chore(): remove executable flag on moto/s3/response.py
* chore(): ignore .eggs temp file
* feat(#1987): get bucket acceleration support
* feat(#1987): put bucket acceleration support
* feat(#1987): suspend undefined bucket is a no-op
* feat(#1987): validate accelerate_configuration status
* feat(#1987): bucket containing dots do not support acceleration
* doc(#1987): update implementation coverage
