Similarity (#485)

* Add five new metric #349 #350

* Add five new metrics #349 #350

* Add five new metrics #349 #350

* Add five new metrics #349 #350

* Add five new metrics #349 #350

* Minor edits #349 #350

* Add five new metrics #349 #350

* Apply autopep8 #349 #350

* fix minor bug in GillbertWells similarity #349 #350

* fix minor bug in Goodall similarity #349 #350

* fix minor bug in Hurlbert correlation #349 #350

* Add new metrics verified test #349 #350

* minor edit

* minor edit

* remove problematic distances #349 #350

* change Goodall test method to resudual mode #349 #350

* doc : Distance.ipynb updated #485

* doc : Distance.ipynb updated #485

* doc : Distance.ipynb script section changed #485

* doc : Distance.ipynb updated #485

* doc : CHANGELOG updated #485

* fix : autopep8

* Modify references

* doc : minor bugs in Document fixed #485

* fix : minor edit in Gilbert & Wells function #485

* fix : sort_char_num_transformer function added #485

* doc : minor edit in docstring #485

* fix : autopep8 #485

---------

Co-authored-by: sepandhaghighi <[email protected]>

CHANGELOG.md

@@ -5,6 +5,31 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- 23 new distance/similarity
+	1. Dennis 
+	2. Digby
+	3. Dispersion
+	4. Doolittle
+	5. Eyraud
+	6. Fager & McGowan
+	7. Faith
+	8. Fleiss-Levin-Paik
+	9. Forbes I
+	10. Forbes II
+	11. Fossum
+	12. Gilbert & Wells
+	13. Goodall
+	14. Goodman & Kruskal's Lambda
+	15. Goodman & Kruskal Lambda-r
+	16. Guttman's Lambda A
+	17. Guttman's Lambda B
+	18. Hamann
+	19. Harris & Lahey
+	20. Hawkins & Dotson
+	21. Kendall's Tau
+	22. Kent & Foster I
+	23. Kent & Foster II
 ### Changed
 - `sort` parameter added to `relabel` method
 - Document modified