message: feat(c-api) Implement `wasm_module_name` and `wasm_module_set_name`.
  I submited a proposal to the official `wasm.h` by the way,
  For the moment,
  let's keep that as a vendor specific implementation.
diff: //! Wasmer-specific extensions to the Wasm C API.
  -use crate::wasm_c_api::instance::wasm_instance_t;
  +use super::instance::wasm_instance_t;
  +use super::module::wasm_module_t;
  +use super::types::wasm_name_t;
  use std::ffi::c_void;
  +use std::str;
  #[no_mangle]
  pub unsafe extern "C" fn wasm_instance_get_vmctx_ptr(instance: &wasm_instance_t) -> *mut c_void {
  instance.inner.vmctx_ptr() as _
  }
  +
  +#[no_mangle]
  +pub unsafe extern "C" fn wasm_module_name(module: &wasm_module_t, out: &mut wasm_name_t) {
  + let name = match module.inner.name() {
  + Some(name) => name,
  + None => return,
  + };
  +
  + *out = name.as_bytes().to_vec().into();
  +}
  +
  +#[no_mangle]
  +pub unsafe extern "C" fn wasm_module_set_name(module: &wasm_module_t, name: &wasm_name_t) -> bool {
  + let name = match name.into_slice() {
  + Some(name) => match str::from_utf8(name) {
  + Ok(name) => name,
  + Err(_) => return false, // not ideal!
  + },
  + None => return false,
  + };
  +
  + module.inner.set_name(name)
  +}
  