add cilium-cli and hubble to the toosls list

[stepbeta]

See:

• https://github.com/cilium/cilium-cli/
• https://github.com/cilium/hubble/

Note: to make this work we need to handle zipped files from github as well. Right now we only do that for direct downloads

[stepbeta]

closed with #4