Revert to compile and install libiberty.a.
This is thought as necessary for simulavr, but it turned out
that libiberty.a and libbfd.a are natively compiled and not
useful for those purpose (To be fixed later).
Import simulavr-1.0.0 as wip/simulavr.

The Simulavr program is a simulator for the Atmel AVR family of
microcontrollers. Simulavr can be used either standalone or as a
remote target for gdb. When used in gdbserver mode, the simulator
is used as a backend so that gdb can be used as a source level
debugger for AVR programs.

Simulavr was written by Theodore A. Roth

(This is BROKEN now.)