feat(Activity Tracker): add new atracker v2 service to project (#175)

Co-authored-by: Phil Adams <phil_adams@us.ibm.com>

README.md

@@ -45,7 +45,8 @@ The IBM Cloud Platform Services Go SDK allows developers to programmatically int
 
 Service Name | Package name 
 --- | --- 
-[Activity Tracker](https://cloud.ibm.com/apidocs/atracker?code=go) | atrackerv1
+[Activity Tracker](https://cloud.ibm.com/apidocs/atracker/atracker-v2) | atrackerv2
+[Activity Tracker v1 [deprecated]](https://cloud.ibm.com/apidocs/atracker/atracker-v1) | atrackerv1
 [Case Management](https://cloud.ibm.com/apidocs/case-management?code=go) | casemanagementv1
 [Catalog Management](https://cloud.ibm.com/apidocs/resource-catalog/private-catalog?code=go) | catalogmanagementv1
 [Configuration Governance](https://cloud.ibm.com/apidocs/security-compliance/config?code=go) | configurationgovernancev1