Set peer address of client when creating the instance.

* Adds new client connect method that will connect to the address already set.

Co-authored-by: wakwak-koba <wakwak-koba@users.noreply.github.com>

src/NimBLEDevice.h

@@ -130,7 +130,7 @@ public:
 #endif
 
 #if defined( CONFIG_BT_NIMBLE_ROLE_CENTRAL)
-    static NimBLEClient*    createClient();
+    static NimBLEClient*    createClient(NimBLEAddress peerAddress = NimBLEAddress(""));
     static bool             deleteClient(NimBLEClient* pClient);
     static NimBLEClient*    getClientByID(uint16_t conn_id);
     static NimBLEClient*    getClientByPeerAddress(const NimBLEAddress &peer_addr);