one more optimalization of plugin size & load time

plugins/dbgate-plugin-mssql/src/frontend/MsSqlDumper.js

@@ -1,4 +1,4 @@
-const SqlDumper = require('dbgate-tools/lib/SqlDumper');
+const { SqlDumper } = global.DBGATE_TOOLS;
 
 class MsSqlDumper extends SqlDumper {
   autoIncrement() {

plugins/dbgate-plugin-mssql/src/frontend/driver.js

@@ -1,4 +1,4 @@
-const driverBase = require('dbgate-tools/lib/driverBase');
+const { driverBase } = global.DBGATE_TOOLS;
 const MsSqlDumper = require('./MsSqlDumper');
 
 /** @type {import('dbgate-types').SqlDialect} */

plugins/dbgate-plugin-mssql/webpack-frontend.config.js

@@ -15,6 +15,12 @@ var config = {
     library: 'plugin',
   },
 
+  plugins: [
+    new webpack.DefinePlugin({
+      'global.DBGATE_TOOLS': 'window.DBGATE_TOOLS',
+    }),
+  ],
+
   // optimization: {
   //   minimize: false,
   // },