Bulk migration to AnsibleAWSModule (ansible-collections#173)

* Update comments to reference AnsibleAWSModule rather than AnsibleModule
* Bulk re-order imports and split onto one from import per-line.
* Add AnsibleAWSModule imports
* Migrate boto 2 based modules to AnsibleAWSModule
* Move boto3-only modules over to AnsibleAWSModule
* Remove extra ec2_argument_spec calls - not needed now we're using AnsibleAWSModule
* Remove most HAS_BOTO3 code, it's handled by AnsibleAWSModule
* Handle missing Boto 2 consistently  (HAS_BOTO)
* Remove AnsibleModule imports
* Changelog fragment

This commit was initially merged in https://github.com/ansible-collections/community.aws
See: ansible-collections/community.aws@818c6d2

plugins/modules/ec2_vpc_egress_igw.py

@@ -71,7 +71,7 @@ def delete_eigw(module, conn, eigw_id):
     """
     Delete EIGW.
 
-    module     : AnsibleModule object
+    module     : AnsibleAWSModule object
     conn       : boto3 client connection object
     eigw_id    : ID of the EIGW to delete
     """
@@ -99,7 +99,7 @@ def create_eigw(module, conn, vpc_id):
     """
     Create EIGW.
 
-    module       : AnsibleModule object
+    module       : AnsibleAWSModule object
     conn         : boto3 client connection object
     vpc_id       : ID of the VPC we are operating on
     """
@@ -139,7 +139,7 @@ def describe_eigws(module, conn, vpc_id):
     """
     Describe EIGWs.
 
-    module     : AnsibleModule object
+    module     : AnsibleAWSModule object
     conn       : boto3 client connection object
     vpc_id     : ID of the VPC we are operating on
     """