add similarity_search.py in machine_learning (#3864)

* add similarity_search.py in machine_learning
adding similarity_search algorithm in machine_learning

* fix pre-commit test, apply feedback

isort, codespell changed.
applied feedback(np -> np.ndarray)

* apply feedback

add type hints to euclidean method

* apply feedback

- changed euclidean's type hints
- changed few TypeError to ValueError
- changed range(len()) to enumerate()
- changed error's strings to f-string
- implemented without type()
- add euclidean's explanation

* apply feedback

- deleted try/catch in euclidean
- added error tests
- name change(value -> value_array)

* # doctest: +NORMALIZE_WHITESPACE

* Update machine_learning/similarity_search.py

* placate flake8

Co-authored-by: Christian Clauss <cclauss@me.com>