[oauth] start oauth auth_code server implementation

server/api/models/oauth_client.js

@@ -0,0 +1,19 @@
+
+module.exports = (sequelize, DataTypes) => {
+  const OAuthClient = sequelize.define('oauth_client', {
+    client_id: {
+      type: DataTypes.STRING,
+      primaryKey: true
+    },
+    name: DataTypes.STRING,
+    scopes: DataTypes.STRING,
+    client_secret: DataTypes.STRING,
+    redirectUris: DataTypes.STRING
+  }, {})
+
+  OAuthClient.associate = function (models) {
+    OAuthClient.belongsTo(models.user)
+  }
+
+  return OAuthClient
+}