Modulefy core server-dependent caps

include/znc/Client.h

@@ -335,6 +335,7 @@ class CClient : public CIRCSocket {
     SCString m_ssServerDependentCaps;
 
     friend class ClientTest;
+    friend class CCoreCaps;
 };
 
 #endif  // !ZNC_CLIENT_H

include/znc/IRCSock.h

@@ -240,6 +240,7 @@ class CIRCSock : public CIRCSocket {
     VCString m_vsSSLError;
 
     friend class CIRCFloodTimer;
+    friend class CCoreCaps;
 };
 
 #endif  // !ZNC_IRCSOCK_H