CGlue 0.2.4

Changes in 0.2.4:

Make cglue generated exports easier to import:

• cglue_##trait_or_groupname module is exposed as public that contains all types that are being re-exported to parent module.

• In the future, these types may not be re-exported anymore, and code generator may rely on cglue_##trait_or_groupname to exist in scope for cleaner code generation.

Add boxed slice, CVec, and add more serde support.

Compatible with official abi_stable:

• Users should now use cglue::trait_group::c_void as the c_void type.

• Technically breaks semver, but it is not possible to do anything with c_void anyways.

Changes in 0.2.3:

Make formatting traits FFI-safe:

• All standard fmt traits are exposed.

• Only Debug and Display are in the prefix.

• Not full formatting functionality is preserved across FFI boundary.

Add extra customization to C function impls.