[Angular] Angular i18n Alternative Expressions Support (select)

For example we have those code:

    <div class="course-category" [ngSwitch]="course.category">

        <div class="category" *ngSwitchCase="'BEGINNER'">Beginner</div>

        <div class="category" *ngSwitchCase="'INTERMEDIATE'">Intermediate</div>

        <div class="category" *ngSwitchCase="'ADVANCED'">Advanced</div>

    </div>

ngSwith code, and we want to convert to i18n as well, we can use 'select' keyword:

    <div class="category" i18n>

        {
            course.category,
            select,
            BEGINNER {Beginner}
            INTERMEDIATE {Intermediate}
            ADVANCED {Advanced}
        }

    </div>