dep/animone: fix tons of issues for example, the window ID stuff was just... completely wrong. since we're supporting multiple different window systems, it *has* to be a union rather than just a single integer type. HWND is also not a DWORD, it's a pointer(!), so now it's stored as a std::uintptr_t. (this probably breaks things)

<?xml version="1.0"?>
<mesh name="mesh_root">
	<!-- here is a mesh node -->
	some text
	<![CDATA[someothertext]]>
	some more text
	<node attr1="value1" attr2="value2" />
	<node attr1="value2">
		<innernode/>
	</node>
</mesh>
<?include somedata?>