UX Workflow improvements for Physics Materials (#1237)

- Added button to PhysX Collider Component in PhysX Mesh's field to open FBX Settings.
- Added button Material Selection to open the physics material library in Asset Editor.
- Default Material in PhysX configuration is read only and consistent with the text in combo boxes.
- Material configuration field "Surface Type" renamed to "Name"
- Fixed bug in EditorColliderComponent where the material selection was not updated when changing the library.
- Fixed bug where the materials selection was not set to default when a physics material from the asset was not found in the library.
- Added attributes 'BrowseButtonEnabled' and 'BrowseButtonVisible' to PropertyAssetCtrl.
- Updated physx configuration setreg files of AutomatedTesting project.

Gems/PhysX/Code/Source/Material.cpp

@@ -441,6 +441,7 @@ namespace PhysX
                     "UpdateMaterialSelectionFromPhysicsAsset: Physics material '%s' not found in the material library. Mesh material '%s' will use the default physics material.",
                     physicsMaterialNameFromPhysicsAsset.c_str(),
                     meshAsset->m_assetData.m_materialNames[slotIndex].c_str());
+                materialSelection.SetMaterialId(Physics::MaterialId(), slotIndex);
             }
         }
     }