Began implementing fully isomorphic macros

Like Rust's Proc macros. Now we have preprocessor recursion to worry about. I also made a cool macro for enums

orchid-api-traits/src/lib.rs

@@ -2,8 +2,10 @@ mod coding;
 mod helpers;
 mod hierarchy;
 mod relations;
+mod api_conv;
 
-pub use coding::{Coding, Decode, Encode};
-pub use helpers::{enc_vec, encode_enum, read_exact, write_exact};
-pub use hierarchy::{Extends, InHierarchy, TLBool, TLFalse, TLTrue, UnderRoot};
-pub use relations::{Channel, MsgSet, Request};
+pub use coding::*;
+pub use helpers::*;
+pub use hierarchy::*;
+pub use relations::*;
+pub use api_conv::*;