libbsd: Add recipes for libbsd - utility functions from BSD systems

libbsd: Add recipes for libbsd - utility functions from BSD systems

When building BSD programs this library provides common
BSD functions that are missing on other OSes e.g. Linux

This library is elemental for porting large set of BSD applications
current consumer of this are in meta-networking/openbsd-netcat
but once we have it in OE-Core more recipes depending on it in different layers
can be added.

(From OE-Core rev: 2df53911f25234d2724bc8163ac9406af0bdad06)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>