Re-add create exe to Wasmer

[syrusakbary]

This is a follow up from #2916 (it's blocked by it).

We need to re-add create-exe to Wasmer.
Steps:

1. Re-use the previous existing code (from C) to create the executable
2. Create a new create-exe that uses Zig under the hood.
3. Make zig on-create exe used with wax
4. Include the virtual filesystem into the generated executable (python should work) - not required for Wasmer 3.0

Details for (2)

We need to Zig version of the C generated file, if zig is found in the system, we can use it by default, if not, we need to call a subprocess with wax zig.
Unknowns:

1. linker might not work the same way

Details for (3)

We will include the virtual filesystem structure into Wasmer, so Python can be actually converted to a native executable