[FEATURE REQUEST] <Vowels Count>

[mpousmali]

What would you like to Propose?

I would like to implement an algorithm that counts vowels of a string.

Issue details

The algorithm will count and return the number of vowels in a string.

Additional Information

Example:
Given the string "string", algorithm will return 1.
Given the string "str" algorithm will return 0.

[siriak]

It's not the kind of algorithm that we include here