Rename prefab -> Prefab (#4825)

* Rename part 1

* Rename part 2

* Rename part 3

AutomatedTesting/Gem/PythonTests/Prefab/tests/PrefabBasicWorkflow_InstantiatePrefab.py

@@ -0,0 +1,34 @@
+"""
+Copyright (c) Contributors to the Open 3D Engine Project.
+For complete copyright and license terms please see the LICENSE at the root of this distribution.
+
+SPDX-License-Identifier: Apache-2.0 OR MIT
+"""
+
+def PrefabBasicWorkflow_InstantiatePrefab():
+
+    from azlmbr.math import Vector3
+
+    EXISTING_TEST_PREFAB_FILE_NAME = "Gem/PythonTests/Prefab/data/Test.prefab"
+    INSTANTIATED_TEST_PREFAB_POSITION = Vector3(10.00, 20.0, 30.0)
+    EXPECTED_TEST_PREFAB_CHILDREN_COUNT = 1
+
+    from editor_python_test_tools.prefab_utils import Prefab
+
+    import PrefabTestUtils as prefab_test_utils
+
+    prefab_test_utils.open_base_tests_level()
+
+    # Checks for prefab instantiation passed or not 
+    test_prefab = Prefab.get_prefab(EXISTING_TEST_PREFAB_FILE_NAME)
+
+    test_instance = test_prefab.instantiate( 
+        prefab_position=INSTANTIATED_TEST_PREFAB_POSITION)
+    
+    prefab_test_utils.check_entity_children_count(
+        test_instance.container_entity.id, 
+        EXPECTED_TEST_PREFAB_CHILDREN_COUNT)
+
+if __name__ == "__main__":
+    from editor_python_test_tools.utils import Report
+    Report.start_test(PrefabBasicWorkflow_InstantiatePrefab)