feat: firebird use attachOrCreate on connect, add dbFileExtension and locaiton on server to tests

plugins/dbgate-plugin-firebird/src/frontend/Dumper.js

@@ -1,5 +1,9 @@
 const { SqlDumper } = global.DBGATE_PACKAGES['dbgate-tools'];
 
-class Dumper extends SqlDumper {}
+class Dumper extends SqlDumper {
+  autoIncrement() {
+    this.put(' ^generated ^by ^default ^as ^identity');
+  }
+}
 
 module.exports = Dumper;

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

@@ -17,6 +17,8 @@ const dialect = {
     return `"${s}"`;
   },
 
+  dbFileExtension: '.fdb',
+
   createColumn: true,
   dropColumn: true,
   changeColumn: true,