Stop the (optional) dialong control data from being aligned when...

Stop the (optional) dialong control data from being aligned when parsing/writing windows resource files.

binutils* resbin.c: Optional dialog control data immediately follow
	the control description without alignment.
	* testsuite/binutils-all/windres/controldata.rc: New test.
	source.
	* testsuite/binutils-all/windres/controldata.rsd: New test.