Validate `tags` attributes

Provide generated validation rules against AWS tag keys and values by service for the allowed characters. For example:

https://github.com/aws/api-models-aws/blob/91a2a788b2fa384a51d29384c550a49155d85180/models/ecs/service/2014-11-13/ecs-2014-11-13.json#L15877

Discussed in https://github.com/terraform-linters/tflint-ruleset-aws/discussions/1018
