Request for review - std.serialization (orange)

[Kagamin]

A "MyArchive" example can be useful too. The basic idea is to 
write a minimal archive class with basic test code. All methods 
assert(false,"method archive(dchar) not implemented"); the 
example complies and runs, but asserts. So people take the 
example and fill methods with their own implementations, thus 
incrementally building their archive class.