[aws] New module: iam_password_policy (#36200)

* Adding iam_password_policy module

* fixing various issues -- error handling, bugs

* fixing various issues based on tests

* renaming dummy var

* fixing type reference in documentation

* adding int tests and other updates

* removing typo

* fixing auth for int tests

* removing int tests for now

* readding integration tests w/ unsupported designation

* removing conflicting group

* Update aliases

* Fix unused variable

test/units/modules/cloud/amazon/test_iam_password_policy.py

@@ -0,0 +1,25 @@
+import boto3
+import pytest
+
+from units.modules.utils import set_module_args
+from ansible.module_utils.ec2 import HAS_BOTO3
+from ansible.modules.cloud.amazon import iam_password_policy
+
+if not HAS_BOTO3:
+    pytestmark = pytest.mark.skip("iam_password_policy.py requires the `boto3` and `botocore` modules")
+
+
+def test_warn_if_state_not_specified():
+    set_module_args({
+        "min_pw_length": "8",
+        "require_symbols": "false",
+        "require_numbers": "true",
+        "require_uppercase": "true",
+        "require_lowercase": "true",
+        "allow_pw_change": "true",
+        "pw_max_age": "60",
+        "pw_reuse_prevent": "5",
+        "pw_expire": "false"
+    })
+    with pytest.raises(SystemExit):
+        print(iam_password_policy.main())