Add missing gRPC functions

grpcapi/comasvc.proto

@@ -11,6 +11,7 @@ service MobilityAccounts {
     rpc UpdateData(UpdateDataRequest) returns (UpdateDataResponse) {}
     rpc GetAccount(GetAccountRequest) returns (GetAccountResponse) {}
     rpc GetAccounts(GetAccountsRequest) returns (GetAccountsResponse) {}
+    rpc GetAccountsBatch(GetAccountsBatchRequest) returns (GetAccountsBatchResponse) {}
 
     // Authentication functions
     rpc Login(LoginRequest) returns (LoginResponse) {}
@@ -61,6 +62,14 @@ message GetAccountsResponse {
     repeated Account accounts = 14;
 }
 
+message GetAccountsBatchRequest {
+    repeated string accountids = 13; // Filter on namespaces
+}
+
+message GetAccountsBatchResponse {
+    repeated Account accounts = 14;
+}
+
 message ChangePasswordRequest {
     string id = 15;
     string password = 16;