feat(Global Catalog): add service and unit test code to project

Author: ibm-devx-sdk

README.md

@@ -47,6 +47,7 @@ IBM Cloud services:
 
 Service Name | Imported Class Name
 --- | --- 
+[Global Catalog](https://cloud.ibm.com/apidocs/resource-catalog/global-catalog) | GlobalCatalogV1
 [Global Search](https://cloud.ibm.com/apidocs/search) | GlobalSearchV2
 [Global Tagging](https://cloud.ibm.com/apidocs/tagging) | GlobalTaggingV1
 

ibm_platform_services/__init__.py

@@ -18,5 +18,6 @@
 from .common import get_sdk_headers
 from .version import __version__
 
+from .global_catalog_v1 import GlobalCatalogV1
 from .global_search_v2 import GlobalSearchV2
 from .global_tagging_v1 import GlobalTaggingV1