Carrying over casing

[zoltan-fedor]

Hi,
For my project I am implementing an extension to allow me to carry over the casing (eg uppercase vs lowercase characters) from the input phrase to the typoe-corrected case.

For example:
"I have a typo prooblem in Neew York"
currently turns into
"i have a typo problem in new york"

But I will make it to be:
"I have a typo problem in New York"

I am wondering whether you would be interested in a pull request for it, knowing that this is a port of https://github.com/wolfgarbe/SymSpell.

[mammothb]

Please do, I think it's a requested feature for the main project as well (wolfgarbe/SymSpell#34).

[zoltan-fedor]

I have created a PR for it - see #46