RelativeLayout missing support for RelativeToView

[edgarfgp]

RelativeToView is missing from v1 and V2 . Would be good to see if there is anyway we can support this as we move forward to stable 2.0

public static Constraint RelativeToView(View view, Func<RelativeLayout, View, double> measure)
{
	var result = new Constraint { _measureFunc = layout => measure(layout, view), RelativeTo = new[] { view } };

	return result;
}

• BoundsConstraint

public static BoundsConstraint FromExpression(Expression<Func<Rectangle>> expression, IEnumerable<View> parents = null)
{
	return FromExpression(expression, false, parents);
}

internal static BoundsConstraint FromExpression(Expression<Func<Rectangle>> expression, bool fromExpression, IEnumerable<View> parents = null)
{
	Func<Rectangle> compiled = expression.Compile();
	var result = new BoundsConstraint
	{
		_measureFunc = compiled,
		RelativeTo = parents ?? ExpressionSearch.Default.FindObjects<View>(expression).ToArray(), // make sure we have our own copy
		CreatedFromExpression = fromExpression
	};

	return result;
}