Add touch keyboard to touch display

[ak6i]

Our friends at Audiophonics have documented how to install a Chromium touchscreen keyboard plugin (see https://github.com/audiophonics/rasptouch_volumio3).

This is a small change to the install script that installs the Chromium keyboard plugin into this Volumio plugin's directory and adds it to the kiosk launch script.

[gvolt]

If all goes well, I will soon upload a new version of the Touch Display plugin that includes the virtual keyboard extension.

[volumio]

I would suggest to use this: https://github.com/volumio/chrome-virtual-keyboard

This is the customized keyboard (with multilanguage support and several volumio related impros) that we use in our products.

[gvolt]

@volumio Yes, that was the plan and it has already been implemented. 😉

[volumio]

@gvolt great!!!!

PS: I was thinking, now that Raspberry PI by default is much more powerful. What about including this plugin by default in Volumio? What's your take on this?