Add tags to module

Pass a map of tags to the aws lambda module

Security IDs fix

Changing it to a list as this is required for vpc config.

Adds reserved_concurrent_executions variable

This allows use of the reserved_concurrent_executions argument.

New output

Add output so child modules terraform-acuris-aws-lambda-[cron|sns] can use this module to create the lambda

Fix README and tests

Fix README and tests

Initial commit from tf_aws_lambda

Initial commit from tf_aws_lambda