Fix SSL 2 version constant to 0x0002

SSL 2 uses a version field of 0x0002, not 0x0200.  This is confirmed not
only in the original Netscape spec [1] and RFC draft of the time [2],
but also in major implementations such as OpenSSL [3] and Wireshark [4].

[1] https://www-archive.mozilla.org/projects/security/pki/nss/ssl/draft02.html
[2] https://datatracker.ietf.org/doc/html/draft-hickman-netscape-ssl-00
[3] https://github.com/openssl/openssl/blob/OpenSSL_0_9_6m/ssl/ssl2.h#L66-L71
[4] https://github.com/wireshark/wireshark/blob/release-4.4/epan/dissectors/packet-tls-utils.h#L266-L277

Packet++/header/SSLCommon.h

@@ -117,7 +117,7 @@ namespace pcpp
 		enum SSLVersionEnum
 		{
 			/** SSL 2.0 */
-			SSL2 = 0x0200,
+			SSL2 = 0x0002,
 			/** SSL 3.0 */
 			SSL3 = 0x0300,
 			/** TLS 1.0 */