[freetype] Enable png, zlib, and bzip support
[freetype] Enable png, zlib, and bzip support

Previously, libpng was included as a dependency but it wasn't being
recognized by the configure script.  This commit:

- Sets PKG_CONFIG_PATH so the configure script finds libpng and other
  deps.

- Adds zlib and bzip2 to the deps list

- Sets pkg_bin_dir to ensure freetype-config is available in the PATH.

- Ensure the plan means the new style requirements

Signed-off-by: Steven Danna <9ce5770b3bb4b2a1d59be2d97e34379cd192299f@chef.io>

be-plans/be,be-plans/be,be-plans/be,be-plans/be