PocoDoc/CppParser fails to parse static_assert in class declaration

[obiltschnig]

Using static_assert in a class declaration, such as in Poco::Any, causes CppParser to fail parsing the respective header, and as a consequence, PocoDoc does not generate documentation for that class. Workaround is to wrap the declaration in an #ifndef ..., as in:

#ifndef POCO_DOC
	static_assert(
		sizeof(AlignerType) < SizeV,
		"Aligner type is bigger than the actual storage, so SizeV should be made bigger otherwise you simply waste unused memory."
	);
#endif