add new CodingKey

[MMnasrabadi]

please add new CodingKey
: capitalize first letter of each word

like:

struct CreatePasscodeModel: CodablePro {
let passcode: String?
let verifyCode: String?

private enum CodingKeys: String, CodingKey {
    case passcode = "Passcode"
    case verifyCode = "VerifyCode"
}

}

[wleii]

This project accepts contributed code, you can implement this feature, I will merge it, thx :]