MsiUseFeature utility extended with installed language check

MsiUseFeature/README.md

@@ -3,15 +3,17 @@ Checks the installation state of the given feature of G
 
 ##Usage
 ```
-MsiUseFeature <feature name>
+MsiUseFeature <feature name> [language]
 ```
 
 - `feature name` - The name of the feature to check (i.e. "featEAPTTLS"; see Feature table of product MSI file)
+- `language`     - The user preferred language of the product
 
 Note: The MSI product code changes on every release. Therefore, `MsiUseFeature` utility with identical version should be used.
 
 Return codes:
 - -1 = Invalid parameters
 - 0  = Success
-- 1  = The product is not installed or feature state is unknown
+- 1  = The product is not installed, or feature state is unknown
 - 2  = The feature is not installed locally
+- 3  = The installed user preferred language is different