feat: add views to firebird

plugins/dbgate-plugin-firebird/src/backend/sql/views.js

@@ -0,0 +1,14 @@
+module.exports = `SELECT
+    TRIM(RDB$RELATION_NAME) AS "pureName",
+    RDB$DESCRIPTION AS "objectComment",
+    RDB$FORMAT AS "objectTypeField"
+FROM
+    RDB$RELATIONS
+WHERE
+    RDB$SYSTEM_FLAG = 0 -- only user-defined tables
+AND
+    RDB$RELATION_TYPE = 1 -- only views (not tables, etc.)
+AND
+    ('tables:' || TRIM(RDB$RELATION_NAME)) =OBJECT_ID_CONDITION
+ORDER BY
+    "pureName";`;