Make AutoSize / Layout and Anchoring on by default

[Leledumbo]

New Lazarus users often expecting the same look and feel for apps they made for whatever platform it's compiled for. But the case isn't so. Often, a good looking application looks ugly when compiled for different platforms. A solution is to use AutoSizing and Anchoring, where everything is handled dynamically instead of hardcoded. So, let's make it the default so new users don't get this problem.