[New Feature] CreateThread Self Injection Option for `inject` (Windows Agent)

[HuskyHacks]

Using VirtualAlloc/VirtualProtect/CreateThread/WaitForSingleObject pattern

[mttaggart]

This capability has been added to inject.rs as of 266b2f4

[HuskyHacks]

CreateThread injector now folded into inject command handler. Usage:

- [ ] inject self [url] [b64_iterations] 🎯 

Omitting the WaitForSingleObject call makes it so the agent can continue to function when the injection takes place.