Added kino-title-layout element.

This layout supports title and subtitle layout.

<kino-pres>
<kino-slide x="100" y="100" z="-100" rotateX="30" rotateY="30" rotateZ="0" scale=3">
    <kino-title-layout>
        <kino-title>
            Slide 1
        </kino-title>
        <kino-subtitle>
            Author: Rohit Ghatol
        </kino-subtitle>
    </kino-title-layout>
</kino-slide>
</kino-pres>