Allow module to choose currency and language

@sakonn Changes look good to me, let me know if it works well on your store setup.
DEV version was updated.

@sakonn You are using outdated local branch, this fix already in DEV branch

@akozoriz
Yes I have noticed that something is wrong. Sorry about that.
I have tried to update fork but have done something wrong. Where can I find some documentation how to do that properly?

Here I have done simple patch file with additional changes that were necessary to implement for proper complete page redirections.

@sakonn I merged your changes with some code style updated to the DEV branch. Please update your repository. Thanks for the work on the project!

I confirm that the development version of the module is working correctly. I can send you test environment links for multilanguage setup if you want to test it out.

@sakonn, great.
Would be great to get test links for additional testing.

Here you can check it out:
https://test.de.penguin.nosicetazne.sk/
https://test.hu.penguin.nosicetazne.sk/
https://test.sk.penguin.nosicetazne.sk/
https://test.cz.penguin.nosicetazne.sk/
https://test.en.penguin.nosicetazne.sk/

Links are valid now during development period.

@sakonn, pls update the dev version of the module, that you are using. I found one more issue, fixed in the last dev update.

I have checked the changes and I think it will be better to use global languageManager service since there is no such a service injected into the controller.

@sakonn ComgateRedirectController extends ControllerBase, which already has languageManager injected. Also, keep in mind, that the best practice in using DI for including any services to the controller.

Aha, then it should be fine :)
Sorry about missunderstanding.