Relates: #82

* As old globals are not used anymore, we use the API to use our fixture
  file to be returned for tests.

Relates: #82

* Use namespace in configuration, as classes are now namespaced.
* Also use namespace in code for referenced to own sniffs.
* Do not use identifiers with further dots as this is no longer
  supported, use ":" instead.

Relates: #82

* Use hash, not version, as version contains bug that not a single
  custom sniff can be executed. That would break our tests.
* Also add auto loading for tests to work, as phpcs removed autoloading
  support for composer.
* Move all sniffs to namespace to allow processing through phpcs.
* Adjust already some class names of phpcs to new conventions.

Relates: #82

FEATURE: Add checks for deprecated/removed extensions

Closes #44

See merge request !70

Merge remote-tracking branch 'origin/develop' into feature/44-add-checks-for-deprecated-removed-extensions

* As discussed in PR, fetch possible extension names and lookup only
  them, not all parts of class name.

Relates: #44, !70

Merge remote-tracking branch 'origin/develop' into feature/44-add-checks-for-deprecated-removed-extensions

FEATURE: Globals

Closes #77

See merge request !90

FEATURE: Detect classes in strings

Closes #15 and #43

See merge request !84

BUGFIX: Allow PhpDocCommentSniff to work find all classnames in comment

See merge request !92

FEATURE: Improve namespace migration

See merge request !91

FEATURE: Add FQObjectIdentifier to TypoScript tokens

Closes #66

See merge request !83

FEATURE: Removed signals and hooks

Closes #45

See merge request !86

* Before only the first classname was returned.
* All class names are returned now.
* This allows to fix Extbase type annotations for relations.

* E.g. prevent migration for ux_ classes which do not follow the
  convention.
* Add test to make sure it works as expected.

* To improve report results even during searching.
* By moving namespace mapping to search from fixing.

Relates: #77

* To reflect new feature.

Relates: #77

* Add feature, tests and configuration.
* Refactor to follow DRY, move prepareStructure to abstract.

Resolves: #77

Relates: #44

Relates: #44

Relates: #44

Relates: #44

Relates: #44

* Just check T_STRING as this are all function calls.
* Remove unused line of code.
* Limit position to current statement to not return later classname
  multiple times.

Relates: #44

Relates: #44

Relates: #44

* Due to copy and paste the identifier was not indicating a removed
  extension.
* Identifier and tests were adjusted accordingly.

Relates: #44

Relates: #44

Relates: #44

* Also update getBefore method of AbstractClassnameChecker to make
  lookups before, like in StaticCallSniff work.

Relates: #44

* Check that the sniff works with new feature of removed extension.

Relates: #44