Added: Support for Injecting into Suspended Processes

[Sewer56]

This PR builds on:

• Enabling Testing and Running dll-syringe on WINE #19

So please address that first, as changes from that PR will show as a diff here otherwise.

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This PR adds support for injecting code into suspended processes.

This is done by adding the API

pub fn for_suspended_process(process: OwnedProcess) -> Result<Self, io::Error> 

For more details, see the code included, but the tl;dr is; we write a dummy function and execute a thread there; this allows for the process to fully initialize (without starting its main thread); allowing us to then perform operations such as listing modules etc.

[Sewer56]

Also submitted WINE Bug #56362: Using CreateRemoteThread on x86 child from an x86_64 parent fails if a lpParameter is specified..

For some reason, the tests still pass, so they don't hit that bug. But I found it while writing this patch, and it definitively exists.
Maybe it has to do with writing the shellcode/payload manually, vs pointing it at an existing loaded DLL.