Rewritten a lot:

Rewritten a lot:
- introduced isUserNameRequired() which should make it sure to have registrations with no user name and password. This also includes no login area (not possible)
- the user then will get a random user name with format "userXXXXX" and a random password. So it is still possible that the "feature" login area for users can come back.
- so no "recover password" is possible, too. Therefore such links can be removed from the menu.
- introduced isMultiplePageEnabled() which is used as a "switch" between single-page and multiple-page registration
- introduced isPublicUserProfileEnabled() which is used to disabled/enable the feature "public user profiles" which is sometimes not wanted ...
- introduced isResendConfirmationLinkEnabled() which disabled the corresponding feature
- showing a "choose profile-mode" while no public user profile is enabled makes no sense ... So better "hide" this option.
- introduced general (abstract) controller Base<project-name>Controller which currently holds a method for checking if for a named controller debug mode is enabled
- renamed doRegister() to doFinishRegistration()
- removed no longer used i18n strings (they may have come back by cherry-picking)
- registration page 1/2 should be "basicly finished" now, single is also available
- index page is now jlandingpage-specific as registration page is in index.xhtml (careful, cherry-picking this!)
- added controller method doRegisterMultiPage1()
- added a lot more language strings
- renamed variables
- added context parameters for above new methods
- added needed navigation cases (careful with cherry-picking again)
- sorted imports (minor)
- fixed i18n string (usage)

Signed-off-by: Roland Häder <roland@haeder.net>
Signed-off-by: Roland Häder <roland@mxchange.org>