Add test folder
the frontend user management repository should be integrated via git subtree, so from now on EMS has to load FUM because FUM is not an wordpress plugin.
Squashed 'frontend-user-management/' content from commit 597d133

git-subtree-dir: frontend-user-management
git-subtree-split: 597d1338775844fbdf5b48d5adbc9248c65ac38e
Merge commit '37b618be9c180167e2e9eaf7614a970322815fc9' as 'frontend-user-management'
Removed Subtree
Merge commit 'c8a38a31cb014bb04e56e5306bf74a606a13a225' as 'frontend-user-management'
Squashed 'frontend-user-management/' content from commit 597d133

git-subtree-dir: frontend-user-management
git-subtree-split: 597d1338775844fbdf5b48d5adbc9248c65ac38e
Added filter for 'fum_option_page_entries' to remove the fum admin menu (will be integrated in the ems admin menu)
Merge commit 'f1c9d30140e38db88690620fb88b975a6182e1b1' into experimental
Squashed 'frontend-user-management/' changes from 597d133..f47c533

f47c533 Added apply_filter ''fum_option_page_entries" so other plugins can remove the option page

git-subtree-dir: frontend-user-management
git-subtree-split: f47c5334277506975bcb140619afe2fd66a5ffd0
Force update to version with merged fum
Add example test
Squashed 'frontend-user-management/' changes from f47c533..e3b2c9b

e3b2c9b Formatting
2e3cc2d Add example test

git-subtree-dir: frontend-user-management
git-subtree-split: e3b2c9b655c02e42fcd81a156157c582992cad1e
Merge commit '0bff32c4109070787ccd4f6fd147d13909d88f2c' into experimental
Refactor directory structure and add sausage lib for functional tests
Refactor directory structure and add sausage lib for functional tests
Refactor directory structure and add sausage lib for functional tests
Refactor directory structure and add sausage lib for functional tests
Merge remote-tracking branch 'origin/experimental' into experimental
Move dependency fum to lib directory