Add cpio package

packages/cpio.rb

+require 'package'
+
+class Cpio < Package
+  description 'GNU cpio copies files into or out of a cpio or tar archive. The archive can be another file on the disk, a magnetic tape, or a pipe.'
+  homepage 'https://www.gnu.org/software/cpio/'
+  version '2.12'
+  source_url 'http://ftp.gnu.org/gnu/cpio/cpio-2.12.tar.gz'
+  source_sha1 'b366685662ab26661c6204b4631af6232e48be3f'
+
+  depends_on 'binutils'
+  depends_on 'gawk'
+
+  def self.build
+    system './configure'
+    system 'make'
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+end