Access values of the config

[OndraM]

Hi,
would be possible to add a way how to read values of the _config after the plugin was initialized? Or would you accept pull request implementing this?

For example - for analytics purposes, we would like to track the language in which user gave consent. However if the language autodetection is enabled, the language is resolved internally in the plugin, and there doesn't seems to be a way how to get the actual resolved value of the current_lang.

I was thinking about something like:

const config = cookieconsent.get('config');
console.log(config.current_lang);

// or to not confuse with `get` which is used for reading  the cookie data
const config = cookieconsent.getConfig();

We would also possibly have an use case for reading other values of the config, not only current_lang.

There would obviously needs to be only a "get" method for the config, as it could be set only on initialization.

[orestbida]

I think we should go with .getConfig(). A PR is very welcome!