Split pkgs required by xbps-base-chroot, as it was made in Fedora.

- Added an additional shell func to add full (build/run), build
  or run time dependencies to packages. An optional third parameter
  can be used to specify other version than the one set in
  the depends file.
- Use a "depends" file in package directory to specify minimum
  required ABI/API version for a package, so that there's no need
  to set the version all the time in pkgs.
- Updated bash to 4.0.

--HG--
extra : convert_revision : 1aa0ce32d4bdc2cd371eac19ae7bcff2c986b6b3

templates/file/template

@@ -13,5 +13,7 @@ long_desc="
  a description if a match is found."
 
 base_chroot=yes
-build_depends="zlib-1.2.3"
-subpackages="base dev libs"
+subpackages="devel"
+
+Add_dependency run glibc
+Add_dependency full zlib