* Update Shippable integration test groups.
* Update integration test group aliases.
* Rebalance AWS and Azure tests with extra group.
* Rebalance Windows tests with another group.
(cherry picked from commit 4e489d1be8)
* ec2_vpc_route_table: Update matching_count parsing on find_subnets function and tests
* ec2_vpc_route_table: Update matching_count parsing on find_subnets function
(cherry picked from commit 1905a6e8fb)
* [cloud] ec2_vpc_route_table: ignore routes without DestinationCidrBlock
Add module warnings rather than silently skipping
* Permit warnings for routes tables containing vpc endpoints to be turned off
* Add tests to ensure a VPC endpoint associated with a route table does not result in a traceback
(cherry picked from commit da3f7a8db1)
* Allow protection of certain keys during camel_to_snake
Create an `ignore_list` parameter that preserves the case
of the contents of certain dictionaries. Most valuable
for `tags` but other uses might arise.
* Port ec2_vpc_route_table to boto3
Update tests to reflect fixes in boto3.
* Add RETURN documentation to ec2_vpc_route_table
* Update DOCUMENTATION to be valid yaml
* Add check mode tests
