[wasmtime-api] Collect and wrap cranelift dependencies (#623)

* Collect and wrap cranelift dependencies
* rename all _cranelift_ named methods

crates/api/src/trampoline/create_handle.rs

@@ -1,9 +1,9 @@
 //! Support for a calling of an imported function.
 
+use crate::data_structures::wasm::DefinedFuncIndex;
+use crate::data_structures::PrimaryMap;
 use crate::runtime::Store;
 use anyhow::Result;
-use cranelift_entity::PrimaryMap;
-use cranelift_wasm::DefinedFuncIndex;
 use std::any::Any;
 use std::cell::{RefCell, RefMut};
 use std::collections::{HashMap, HashSet};
@@ -36,7 +36,7 @@ pub(crate) fn create_handle(
                 module
                     .signatures
                     .values()
-                    .map(|sig| signature_registry.register_cranelift_signature(sig))
+                    .map(|sig| signature_registry.register_wasmtime_signature(sig))
                     .collect::<PrimaryMap<_, _>>(),
             )
         })