feat: add package-2019-11 cost management in java (#8778)

specification/cost-management/resource-manager/readme.md

@@ -262,6 +262,7 @@ batch:
   - tag: package-2018-08-preview
   - tag: package-2019-01
   - tag: package-2019-09
+  - tag: package-2019-11
 ```
 
 ### Tag: package-2018-05 and java
@@ -329,6 +330,19 @@ regenerate-manager: true
 generate-interface: true
 ```
 
+### Tag: package-2019-11 and java
+
+These settings apply only when `--tag=package-2019-11 --java` is specified on the command line.
+Please also specify `--azure-libraries-for-java=<path to the root directory of your azure-sdk-for-java clone>`.
+
+``` yaml $(tag) == 'package-2019-11' && $(java) && $(multiapi)
+java:
+  namespace: com.microsoft.azure.management.costmanagement.v2019_11_01
+  output-folder: $(azure-libraries-for-java-folder)/sdk/costmanagement/mgmt-v2019_11_01
+regenerate-manager: true
+generate-interface: true
+```
+
 ## Multi-API/Profile support for AutoRest v3 generators
 
 AutoRest V3 generators require the use of `--tag=all-api-versions` to select api files.