WIP: Add EXIF filter (#46)

* make dotdict case insensitive

* cidict no longer needed

* update dependencies

* add tag comparison

* fix linter warnings

* add expected values

* Bring up to date with master branch

* add type hints

* add exif filter test

* ensure py3.5 compatibility

* add exif tests

* update comments

* update docs and tests for exif

* update changelog

tests/conftest.py

@@ -9,6 +9,8 @@
 
 TESTS_FOLDER = os.path.dirname(os.path.abspath(__file__))
 
+TESTS_FOLDER = os.path.dirname(os.path.abspath(__file__))
+
 
 def create_filesystem(tmp_path, files, config):
     # create files