Removed readonly ast option. Removed indentation from serialization. Updates to readme.

- Readonly overcompilcates things for the scope of this project. I'm avoding const correctness to avoid mental overhead.
- Indentation was removed as it still required a formatting pass after, and the only significant thing needed was the newlines.
- Removed some opinionated takes from readme, trying to keep it straight to the point.
- Used def_execution more in array and ring defs (was using untyped_str when could have been using execution...)

project/Readme.md

@@ -33,7 +33,6 @@ While getting fleshed out, all feature macros are defined on the top of the head
 These macros are:
 
 * `GEN_DEFINE_LIBRARY_CORE_CONSTANTS` : Optional typename codes as they are non-standard to C/C++ and not necessary to library usage
-* `GEN_ENCORCE_READONLY_AST` : Defines checks in Code when accessing the AST to make sure readonly marked ASTs are not mutated
 * `GEN_FEATURE_INCREMENTAL` : Defines the incremental constructors
 * `GEN_FEATURE_PARSING` : Defines the parse constructors
 * `GEN_FEATURE_EDITOR` : Defines the file editing features for changing definitions based on ASTs