Added the ability to change security group rules inside the module
Why
aws_efs_mount_target exists for each EFS and provides more info than the datasource aws_efs_file_system. Also, we no longer need to remember that we should add an allow rule to EFS security groups.
What
Why
aws_efs_mount_targetexists for each EFS and provides more info than the datasourceaws_efs_file_system. Also, we no longer need to remember that we should add an allow rule to EFS security groups.