scripted-diff: rename ToStringIP[Port]() to ToStringAddr[Port]()

"IP" stands for "Internet Protocol".

"IP address" is sometimes shortened to just "IP" or "address".

However, Tor or I2P addresses are not "IP addresses", nor "IPs".

Thus, use "Addr" instead of "IP" for addresses that could be IP, Tor or
I2P addresses:

`CService::ToStringIPPort()` -> `CService::ToStringAddrPort()`
`CNetAddr::ToStringIP()` -> `CNetAddr::ToStringAddr()`

-BEGIN VERIFY SCRIPT-
sed -i 's/ToStringIPPort/ToStringAddrPort/g' -- $(git grep -l ToStringIPPort src)
sed -i 's/ToStringIP/ToStringAddr/g' -- $(git grep -l ToStringIP src)
-END VERIFY SCRIPT-

src/i2p.cpp

@@ -206,7 +206,7 @@ bool Session::Connect(const CService& to, Connection& conn, bool& proxy_error)
         }
 
         const Reply& lookup_reply =
-            SendRequestAndGetReply(*sock, strprintf("NAMING LOOKUP NAME=%s", to.ToStringIP()));
+            SendRequestAndGetReply(*sock, strprintf("NAMING LOOKUP NAME=%s", to.ToStringAddr()));
 
         const std::string& dest = lookup_reply.Get("VALUE");