Use as less as possible not pre-installed dependencies in the install.sh script

[MarshalX]

Hi, and congratulations!

I have noticed that install.sh uses jq to work with JSON. It's possible that this package is not installed by the users which will cause problems during installation.

The same with wget. It's not pre-installed on macOS as I know. Only on Linux.

Possible fixes:

• Add a notice about required dependencies to run install.sh
• Replace usage of jq and wget to something pre-installed on every system