title: how to use primeNg calendar "locale" for more than one value or dynamically and also change firstdate automaticaly?
body: <p>based on it for e.g if locale is france week day is from monday to sunday if german de its from saturday to sun
  how can i use more than one in locale</p>
  
  <pre><code>&lt;p-calendar [(ngModel)]="value" [locale]="fr\de/?/??what i write here"&gt;&lt;/p-calendar&gt;
  
  
  </code></pre>
  
  <p>//on ts file</p>
  
  <pre><code>this.de = {
        firstDayOfWeek: 1,
        dayNames: [, "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday","Sunday"],
        dayNamesShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
        dayNamesMin: ["Su","Mo","Tu","We","Th","Fr","Sa"],
        monthNames: [ "January","February","March","April","May","June","July","August","September","October","November","December" ],
        monthNamesShort: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun","Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ],
        today: 'Today',
        clear: 'Clear',
        dateFormat: 'mm/dd/yy',
        weekHeader: 'Wk'
    };
  
  this.fr = {
        firstDayOfWeek: 0,
        dayNames: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
        dayNamesShort: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
        dayNamesMin: ["Su","Mo","Tu","We","Th","Fr","Sa"],
        monthNames: [ "January","February","March","April","May","June","July","August","September","October","November","December" ],
        monthNamesShort: [ "Jan", "Feb", "Mar", "Apr", "May", "Jun","Jul", "Aug", "Sep", "Oct", "Nov", "Dec" ],
        today: 'Today',
        clear: 'Clear',
        dateFormat: 'mm/dd/yy',
        weekHeader: 'Wk'
    };
  </code></pre>