Specialize code generation for(build time) compiled Machines

Currently we pay the price of boxing and unboxing the arguments even if when not needed.

In the generated `ModuleExports` class we are invoking functions using the generic lookup mechanism:

```java
instance.exports().function("xyz");
```

When the module is compiled(especially build-time), we can optimize and generate the direct invocation without boxing/unboxing, something like:

```java
MyModuleMachineFuncGroup_0.func_123(arg0, arg1);
```