Rename Form.io => Forms (module name, labels, buttons etc)

[bobslee]

Hi @lieblinger, @niulinlnc,

Please review whether any improvements.

Greets, Bob

[niulinlnc]

@bobslee No problem, do you need to change the module name to Forms as well?

[bobslee]

@niulinlnc What do you mean? I changed also the non-technical module name.

You could install from my fork (PR).

[bobslee]

I keep the technical module name formio, also the prefix formio_ for the additional modules.
This shall remain in version 14 as well.

It shall point out the depedency, importance and gratitude of the formio JS library.

Also the module formio_data_api depends on my PyPi library https://pypi.org/project/formio-data/
Which is also used in module formio_report_qweb, formio_etl and more to come.