add license to java okhttp client

modules/swagger-codegen/src/main/resources/Java/auth/ApiKeyAuth.mustache

@@ -1,3 +1,5 @@
+{{>licenseInfo}}
+
 package {{invokerPackage}}.auth;
 
 import {{invokerPackage}}.Pair;

modules/swagger-codegen/src/main/resources/Java/auth/Authentication.mustache

@@ -1,3 +1,5 @@
+{{>licenseInfo}}
+
 package {{invokerPackage}}.auth;
 
 import {{invokerPackage}}.Pair;

modules/swagger-codegen/src/main/resources/Java/auth/HttpBasicAuth.mustache

@@ -1,3 +1,5 @@
+{{>licenseInfo}}
+
 package {{invokerPackage}}.auth;
 
 import {{invokerPackage}}.Pair;

modules/swagger-codegen/src/main/resources/Java/auth/OAuth.mustache

@@ -1,3 +1,5 @@
+{{>licenseInfo}}
+
 package {{invokerPackage}}.auth;
 
 import {{invokerPackage}}.Pair;

modules/swagger-codegen/src/main/resources/Java/auth/OAuthFlow.mustache

@@ -1,5 +1,7 @@
+{{>licenseInfo}}
+
 package {{invokerPackage}}.auth;
 
 public enum OAuthFlow {
     accessCode, implicit, password, application
-}
+}