serialization/deserialization of datum in VM

This commit adds logic to serialize and deserialize datum, as well
as the start of some total binary format. It implements serialize
and deserialize routines per datum type. Tests are included for
comples cases. Similar code existed in the organelle package which was
then centralized here.

Additionally: this commit makes release target binaries smaller and
faster

Signed-off-by: Ava Affine <ava@sunnypup.io>

hyphae/src/lib.rs

@@ -21,7 +21,7 @@ pub mod hmap;
 pub mod stackstack;
 pub mod instr;
 pub mod vm;
-pub mod util;
+pub mod serializer;
 pub mod heap;
 
 extern crate alloc;