New in AES Version 6.0

Increased internal IO_BUFFER_SIZE to 256K
Fixed problem handling large files in aesEncryptWrite() & aesReadDecrypt()
Replaced deprecated functions strcpy().and strlen()
Added two Diffie-Hellman key exchange function.
1. aesMakeKeyPair(), which makes a Private/Public key pair.
2. aesMakeSharedKey(), which makes a shared key.
Added Visual Studio C/C++ 2022 project files.