Start adding messagepack serialization by adding custom serialize trait to handle csv and messagepack serialization

This is required as csv writer doesn't expose the serde::Serializer implementation, so we can't just use that trait in place of the output writer

src/lib.rs

@@ -1,10 +1,9 @@
 mod move_money;
+pub use self::move_money::*;
 use std::ffi::c_char;
 use std::ffi::CStr;
 use std::ffi::CString;
 
-pub use self::move_money::*;
-
 mod overhead_allocation;
 pub use self::overhead_allocation::*;