Aws waf region (#48953)

* Add waiter for AWSRegional

* Add support for WAF Regional

* Add support for regional waf web acl

* Remove set_trace, pep formatting

* Add paginator for regional_waf

* Change name of param for waf_regional

This is more in line with how AWS refers to the service. Additional
 changes made to how client is called. Used ternary to reduce if
 statements

* Change parameter name to waf_regional

* Add support for removal waf regional condition

* Change parameter from cloudfront to waf_regional

* Added state: absent waf rule

* Remove set_trace

* Add integration tests for waf regional

* WIP: adding region parameter to tests

* Add support for waf facts module

* Add region to waf regional integration tests

* Update security policy for waf regional testing

* Add type to documentation for waf_regional param

hacking/aws_config/testing_policies/security-policy.json

@@ -90,6 +90,12 @@
             "Resource": [
                 "arn:aws:logs:{{aws_region}}:{{aws_account}}:log-group:ansible-testing*"
             ]
+        },
+        {
+            "Sid": "AllowWAFRegionalusage",
+            "Action": "waf-regional:*",
+            "Effect": "Allow",
+            "Resource": "*"
         }
     ]
 }