message: feat(deprecated) Optimize visiblity.
diff: mod instance;
  pub mod types;
  -mod new {
  - pub(crate) use wasm_common;
  - pub(crate) use wasmer;
  +pub(crate) mod new {
  + pub use wasm_common;
  + pub use wasmer;
  }
  pub use crate::instance::Instance;
  