libtinyxml: Add recipe for 2.6.2

This imports the recipe for TinyXML from meta-WebOS@e5c99c2cf, does
some minor fixes on the recipe and import the patches included in the
Debian package.

We use PR as r5 to ensure the package is updated when removed from
meta-WebOS layer.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>