Import NetBSD shell environment files

With the import of Xorg, a proper separation between login-time and sub
shell-time of the environment setup is necessary.

Instead of re-developping this from scratch, I am taking the opportunity
to import the NetBSD default environment.

Change-Id: Ib6a8fbd9c2f407ccd59be57a52ef9df21c2c9ce7

etc/root/Makefile

@@ -0,0 +1,19 @@
+#	$NetBSD: Makefile,v 1.4 2012/11/17 23:08:38 uwe Exp $
+
+CONFIGFILES=		dot.cshrc dot.klogin dot.login dot.profile dot.shrc
+
+FILESDIR=		/root
+FILESMODE=		644
+FILESMODE_dot.klogin=	600
+.for F in ${CONFIGFILES}
+FILESNAME_${F}=		${F:S/dot//}
+.endfor
+
+.include <bsd.own.mk>
+.if !defined(__MINIX)
+CONFIGLINKS=		/root/.cshrc	/.cshrc \
+			/root/.profile	/.profile
+.endif # !defined(__MINIX)
+
+.include <bsd.files.mk>
+.include <bsd.links.mk>