bash: move devel stuff to a -devel subpkg.

srcpkgs/bash-devel

@@ -0,0 +1 @@
+bash

srcpkgs/bash/template

@@ -47,3 +47,12 @@ post_install() {
 	vinstall ${FILESDIR}/bashrc 644 etc/bash
 	vinstall ${FILESDIR}/bash.sh 644 etc/profile.d
 }
+
+bash-devel_package() {
+	short_desc+=" - development files"
+	pkg_install() {
+		vmove usr/include
+		vmove usr/lib/bash
+		vmove usr/lib/pkgconfig
+	}
+}