Adds placement resource provider traits API calls

Change-Id: Iaaff5fa36a6559d30a64c8679a0c1852f9e00342
diff --git a/releasenotes/notes/add-placement-resource-provider-traits-api-calls-9f4b0455afec9afb.yaml b/releasenotes/notes/add-placement-resource-provider-traits-api-calls-9f4b0455afec9afb.yaml
new file mode 100644
index 0000000..1d1811c
--- /dev/null
+++ b/releasenotes/notes/add-placement-resource-provider-traits-api-calls-9f4b0455afec9afb.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Adds API calls for traits in ResourceProvidersClient.