[TASK] Remove functional tests and unused template fixtures

Conflicts:
	Tests/Fixtures/Templates/DummyConfigurationProvider.html
	Tests/Fixtures/Templates/Fields/Checkbox.html
	Tests/Fixtures/Templates/Fields/ControllerActions.html
	Tests/Fixtures/Templates/Fields/Custom.html
	Tests/Fixtures/Templates/Fields/File.html
	Tests/Fixtures/Templates/Fields/Inline.html
	Tests/Fixtures/Templates/Fields/Input.html
	Tests/Fixtures/Templates/Fields/Select.html
	Tests/Fixtures/Templates/Fields/Text.html
	Tests/Fixtures/Templates/Fields/Tree.html
	Tests/Fixtures/Templates/Fields/UserFunc.html
	Tests/Fixtures/Templates/SectionObject.html
	Tests/Fixtures/Templates/Wizards/Add.html
	Tests/Fixtures/Templates/Wizards/ColorPicker.html
	Tests/Fixtures/Templates/Wizards/Edit.html
	Tests/Fixtures/Templates/Wizards/Link.html
	Tests/Fixtures/Templates/Wizards/List.html
	Tests/Fixtures/Templates/Wizards/Select.html
	Tests/Fixtures/Templates/Wizards/Slider.html
	Tests/Fixtures/Templates/Wizards/Suggest.html
	Tests/Functional/Hooks/HookSubscriberTest.php
	Tests/Functional/Templates/ReadTest.php
	Tests/Functional/ViewHelpers/BasicReadTest.php
	Tests/Unit/AbstractTestCase.php
	Tests/Unit/Provider/AbstractProviderTest.php