Improve the consistency of user authentication token (#146)

## What is the goal of this PR?

We've improved the consistency of the architecture by moving user authentication token functionalities into the user protocol. 

## What are the changes implemented in this PR?

1. Group user authentication token RPC calls together with other user RPC calls
2. Group user authentication token message with other user messages

Author: Ganeshwara Hananda

cluster/BUILD

@@ -23,18 +23,12 @@ proto_library(
     name = "service-proto",
     srcs = [":cluster_service.proto"],
     deps = [
-        ":client-proto",
         ":server-proto",
         ":user-proto",
         ":database-proto"
     ],
 )
 
-proto_library(
-    name = "client-proto",
-    srcs = [":cluster_user_token.proto"],
-)
-
 proto_library(
     name = "server-proto",
     srcs = [":cluster_server.proto"],

cluster/cluster_service.proto

@@ -25,7 +25,6 @@ option java_generic_services = true;
 import "cluster/cluster_server.proto";
 import "cluster/cluster_user.proto";
 import "cluster/cluster_database.proto";
-import "cluster/cluster_user_token.proto";
 
 package typedb.protocol;
 
@@ -41,11 +40,9 @@ service TypeDBCluster {
 
     // User API
     rpc user_password (ClusterUser.Password.Req) returns (ClusterUser.Password.Res);
+    rpc user_token (ClusterUser.Token.Req) returns (ClusterUser.Token.Res);
     rpc user_delete (ClusterUser.Delete.Req) returns (ClusterUser.Delete.Res);
 
-    // User Token API
-    rpc user_token_renew (ClusterUserToken.Renew.Req) returns (ClusterUserToken.Renew.Res);
-
     // Database Manager API
     rpc databases_get (ClusterDatabaseManager.Get.Req) returns (ClusterDatabaseManager.Get.Res);
     rpc databases_all (ClusterDatabaseManager.All.Req) returns (ClusterDatabaseManager.All.Res);

cluster/cluster_user.proto

@@ -59,6 +59,16 @@ message ClusterUser {
         message Res {}
     }
 
+    message Token {
+        message Req {
+            string username = 1;
+        }
+
+        message Res {
+            string token = 1;
+        }
+    }
+
     message Delete {
         message Req {
             string username = 1;

cluster/cluster_user_token.proto

@@ -27,7 +27,6 @@ java_grpc_compile(
     name = "typedb-protocol-src",
     deps = [
         "//cluster:service-proto",
-        "//cluster:client-proto",
         "//cluster:server-proto",
         "//cluster:user-proto",
         "//cluster:database-proto",

grpc/java/BUILD

@@ -41,7 +41,6 @@ nodejs_binary(
 ts_grpc_compile(
     name = "typedb-protocol-src",
     deps = [
-        "//cluster:client-proto",
         "//cluster:server-proto",
         "//cluster:user-proto",
         "//cluster:database-proto",

grpc/nodejs/BUILD

@@ -25,7 +25,6 @@ load("@vaticle_dependencies//tool/checkstyle:rules.bzl", "checkstyle_test")
 python_grpc_compile(
     name = "typedb-protocol-src",
     deps = [
-        "//cluster:client-proto",
         "//cluster:server-proto",
         "//cluster:user-proto",
         "//cluster:database-proto",