Old definition of formatters should work for migrated projects

[knstvk]

E.g.:

<column id="opDate">
    <formatter class="com.haulmont.cuba.gui.components.formatters.DateFormatter"
                format="msg://opDateFormat"/>
</column>

QA

1. Add CUBA dependency: implementation 'io.jmix.cuba:jmix-cuba-starter'
2. Create legacy screen or screen with old XSD schema;
3. Add <groupTable> and define formatter for the column

Launch the app and open screen. Formatter should be applied.