0.6.0 Allow customizing the default target group name, target type, and tags

what

• Allow customizing the default target group name, target type, and tags

why

• This adds 3 new variables (with original defaults to maintain backwards compatibility with older module versions) to the default target group:

1. target_group_name - allows specifying a more descriptive custom name for the default target group (while still preserving the naming scheme for the actual ALB)
2. target_group_target_type - AWS has three options for target group types, this allows for specifying an option other than the hardcoded ip
3. target_group_tags - before this change, the default target group did not have its tags set by the module. This updates it to either optionally pass in your own set of tags or use the tags passed in to the module that are also applied to the ALB