dynamic: vmray: add support for "container" function call parameters

[mike-hunhoff]

The "container" type roughly maps to structure and bitfield data. We must first determine if capa can emit features from containers without polluting the matches and then handle the nested structure.

e.g.

[...]
		<param name="pAddrInfo" type="ptr" value="0x5b4030">
			<deref type="container">
				<member name="ai_flags" type="signed_32bit" value="4"/>
				<member name="ai_family" type="signed_32bit" value="2"/>
				<member name="ai_socktype" type="signed_32bit" value="0"/>
				<member name="ai_protocol" type="signed_32bit" value="0"/>
				<member name="ai_addrlen" type="void_ptr" value="0x10"/>
				<member name="ai_canonname" type="void_ptr" value="0x0"/>
				<member name="ai_addr" type="ptr" value="0x5af1a0">
					<deref type="container">
						<member name="sa_family" type="signed_16bit" value="2"/>
						<member name="sin_port" type="unsigned_16bit" value="0x0"/>
						<member name="sin_addr" type="ptr" value="0x100007f">
							<deref type="str" value="127.0.0.1"/>
						</member>
					</deref>
				</member>
				<member name="ai_next" type="void_ptr" value="0x0"/>
			</deref>
		</param>
[...]