implement `crypto.cc` with OpenSSL + fix config loading

  I considered reversing the original `vlong` implementation but
OpenSSL is just simpler, more secure, and most importantly, is
already there. I also made it so the key is now stored in a PEM
file (`tibia.pem`) so it can be easily swapped without re-compiling.

  This was the last piece to build and run a working executable,
except that we now need to implement a query manager for the server
to communicate with. I was able to fix a small problem with loading
the config before hitting the problem with the query manager, which
was expected.

  The next task should be getting a query manager up and running
before starting phase two of upgrading and fixing the server itself.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/query.hh b/src/query.hh
index dbba9dc..6ac6afb 100644
--- a/src/query.hh
+++ b/src/query.hh
@@ -187,4 +187,6 @@ struct TQueryManagerPoolConnection{
 	TQueryManagerConnection *QueryManagerConnection;
 };
 
+void SetQueryManagerLoginData(int Type, const char *Data);
+
 #endif //TIBIA_QUERY_HH_