[skCrypter] add new port

[S0PEX]

Describe the pull request
This PR implements the port port for skCrypter: https://github.com/skadro-official/skCrypter header only library

• What does your PR fix?

Adds port for skCrypter: https://github.com/skadro-official/skCrypter header only library

• Which triplets are supported/not supported? Have you updated the CI baseline?

All windows triplets work fine, as this is just a header all others should works as well but untested.
I haven't updated the CI baseline.

• Does your PR follow the maintainer guide?

Yes, as far as I'm aware

• If you have added/updated a port: Have you run ./vcpkg x-add-version --all and committed the result?

Yes

[ghost]

All CLA requirements met.

[JackBoosY]

Error: while loading skcrypter:
The port directory (/agent/_work/1/s/ports/skcrypter) does not exist
Error: failed to load port from /agent/_work/1/s/ports/skcrypte

Please use all lower-case folder ports/skcrypter instead.

[S0PEX]

updated my bad

[BillyONeal]

Thanks for the new port!