Allowed codemod to set linters for the v2 addon

The codemod now accepts the responsibility of setting linters for the v2 addon. The configurations match those from @embroider/addon-blueprint@2.16.0 closely.

Note, the end-developer is, for the time being, still responsible for installing and configuring ember-template-imports in their v2 addon (if they want to write *.{gjs,gts} files).