Handling kinfo_proc

[beltex]

• Can't seem to handle kinfo_proc
• See compiler bugs 2259, 2260 - https://github.com/practicalswift/swift-compiler-crashes
• Doesn't seem currently possible, thus we use a bridging header, make the call in C, and return a simplified struct in the mean time

Additional Refs

• https://github.com/practicalswift/swift-compiler-crashes/pull/34
• https://github.com/practicalswift/swift-compiler-crashes/pull/35

[beltex]

Now fixed in Xcode 6.3 Beta 1! :)

https://github.com/practicalswift/swift-compiler-crashes/commit/f6da30450923afbc313fbcac16a5367c3f88aec3

[beltex]

Completed.