Add OpenBSD netcat source files
Get netcat to just compile
Implement basic XDP xnetcat functionality
Implement basic XSP xnetcat functionality
Implement relevant xnetcat option flags
Merge commit '7058a3180afd9370507678e2d74d85608afa2ea3' into xnetcat
Merge branch 'develop' into xnetcat
Merge branch 'develop' into xnetcat
Remove duplicate