Add a function ctypes_copy_bytes for building GC-managed blocks.
Add an interface for primitives.ml.
Make Primitives a public module.
Expose a primitive function.
Fix intnat pointer issue in test library.
Generation of 'external' declarations from types.
Add bigarray support for external declarations.
Basic read/write stub generation support.
Record properties of global names.
C stub generation from types (WIP).
Basic code printing (WIP).
More work on C stub generation.
C_stubs interface.
Add ctypes.stubs subpackage.
Basic printer for generated ML code.
Generate function for retrieving primitive constructor names.
Handle external names in generated ML stubs.
Generate wrapper functions for ml stubs.

Pass projected raw pointers to C.
Add interface for ml_stubs module.
Omit trivial wrappers during stub generation.