To install Python packages host side, that
may be needed for a build.
The intent, is to try to reduce host-side Python
packages being installed via LEDE/OpenWrt build system.
Because those seem like a pain to maintain.
The idea is adapted from Yousong's `python-packages`
package.
Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>
612c53fc6c