Add OnSendToIRCMessage and OnSendToClientMessage

This also alters PutClient such that the CMessage variant handles
sending messages, rather than the CString variant. As a side bonus, this
gives callers better information on whether the message was sent to the
client. Additionally, it eliminates the need for a hook to let modules
set the tags sent to a client, as that can now be done inside
OnSendToClientMessage.

modules/modpython/functions.in

@@ -97,6 +97,8 @@ EModRet OnChanTextMessage(CTextMessage& Message)
 EModRet OnPrivNoticeMessage(CNoticeMessage& Message)
 EModRet OnChanNoticeMessage(CNoticeMessage& Message)
 EModRet OnTopicMessage(CTopicMessage& Message)
+EModRet OnSendToClientMessage(CMessage& Message)
+EModRet OnSendToIRCMessage(CMessage& Message)
 
 EModRet OnAddUser(CUser& User, CString& sErrorRet)
 EModRet OnDeleteUser(CUser& User)