Update script.cc

[Berkmann18]

I added:

/**
     * @description Added this to find a workout around for {@link https://github.com/CondorLang/Condor/issues/8}
     * @author Berkmann18
     * @since 29/10/16 19:45 BST
     */
    void Script::Free(Isolate* isolate){
        script->Free(isolate);
    }

In order to do the second and third solutions from the issue #8

[chaseWillden]

@Berkmann18. The code is incomplete, that's why it's not compiling. The api.cc function dynamically casts the script object to the Condor::Internal::Script object. Try doing the following:

1. Pass isolate through as a parameter in shell.cc
2. Add a void Free(Isolate* isolate) to the script.h
3. Free the memory in the implementation of that function. The body should look like this:

isolate->FreeMemory(this, sizeof(Script)); 

[chaseWillden]

removed shell.cc and created main.cc to handle the shell and file input.