feat(defaultColumn): allow disabling default columns

Signed-off-by: Tobias Gurtzick <[email protected]>

Author: wzrdtales

lib/executors/versioned/v2.js

@@ -29,7 +29,9 @@ const execUnit = {
   up: async function (context, driver, file) {
     const _file = file.get();
     const chain = new Chain(context._driver, file, driver, context.internals);
-    chain.addChain(AddConventions);
+    if (!_file._meta.noDefaultColumn) {
+      chain.addChain(AddConventions);
+    }
     chain.addChain(Learn);
     chain.addChain(StateTravel);
     chain.addChain(Migrate);