I admit this may be be a bit aggressive, but the lang
folder is getting cluttered/filled up with Python, PHP, Perl,
Ruby, etc. packages.

Makes sense to try to group them into per-lang folders.

I took the Pythons.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>

python-cryptography tries to install other packages during setup.

However, this isn't needed, since they should have been already
resolved/installed via LEDE/OpenWrt's build system dep logic.

Signed-off-by: Alexandru Ardelean <ardeleanalex@gmail.com>