Automatically fetch debug symbols.

[cyberphantom52]

Currently if debug symbols are not already downloaded, the library will just crash when trying to run a program that references external symbols such as windows kernel structures.

Steps to Reproduce:

1. Delete the contents of C:\symbols directory.
2. Try running processcreation example.

Potential Fix:
Have a local definition of external structures we're using so we dont have to depend on MS Servers.

Temporary workaround:
Run the same program using C:\Program Files\DTrace\dtrace.exe once to fetch the symbols.