Add support for getting Unicode code point from string at specified position

[ShraddheyaS]

Resolves #356.

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Description

What is the purpose of this pull request?

This pull request:

• Adds support for getting Unicode code point from a string at specified position

Related Issues

Does this pull request have any related issues?

This pull request:

• resolves RFC: Add support for getting Unicode code point from string at specified position #356

Questions

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No.

Other

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No.

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[kgryte]

@ShraddheyaS Great work! LGTM. I'll commit the requested changes and then merge. Thanks for working on this!