monitor: Add mesh MGMT cmds/events to btmon parser

Sample Output:
@ MGMT Command: Read Mesh Features (0x0058) plen 0
@ MGMT Event: Command Complete (0x0001) plen 7
      Read Mesh Features (0x0058) plen 4
        Status: Success (0x00)
        Index: 0
        Max Handles: 3
        Used Handles: 0

@ MGMT Command: Set Mesh Receiver (0x0057) plen 9
        Enable: 1
        Window: 4096
        Period: 4096
        Num AD Types: 3
          AD Type: 42
          AD Type: 43
          AD Type: 41
@ MGMT Event: Command Complete (0x0001) plen 3
      Set Mesh Receiver (0x0057) plen 0
        Status: Success (0x00)

@ MGMT Command: Mesh Send (0x0059) plen 43
        Address: 00:00:00:00:00:00 (OUI 00-00-00)
        Addr Type: 2
        Instant: 0x0000000000000000
        Delay: 0
        Count: 1
        Data Length: 24
        Data: 172b01002dda0c2491537ae2000000009de2120a725038b2
@ MGMT Event: Command Complete (0x0001) plen 4
      Mesh Send (0x0059) plen 1
        Status: Success (0x00)
        Handle: 3

@ MGMT Event: Mesh Packet Complete (0x0032) plen 1
        Handle: 3

monitor/packet.c

@@ -14191,6 +14191,74 @@ static void mgmt_remove_adv_monitor_patterns_rsp(const void *data,
 	print_field("Handle: %d", handle);
 }
 
+static void mgmt_set_mesh_receiver_cmd(const void *data, uint16_t size)
+{
+	uint8_t enable = get_u8(data);
+	uint16_t window = get_le16(data + 1);
+	uint16_t period = get_le16(data + 3);
+	uint8_t num_ad_types = get_u8(data + 5);
+	const uint8_t *ad_types = data + 6;
+
+	print_field("Enable: %d", enable);
+	print_field("Window: %d", window);
+	print_field("Period: %d", period);
+	print_field("Num AD Types: %d", num_ad_types);
+	size -= 6;
+
+	while (size--)
+		print_field("  AD Type: %d", *ad_types++);
+}
+
+static void mgmt_read_mesh_features_rsp(const void *data, uint16_t size)
+{
+	uint16_t index = get_le16(data);
+	uint8_t max_handles = get_u8(data + 2);
+	uint8_t used_handles = get_u8(data + 3);
+	const uint8_t *handles = data + 4;
+
+	print_field("Index: %d", index);
+	print_field("Max Handles: %d", max_handles);
+	print_field("Used Handles: %d", used_handles);
+	size -= 4;
+
+	while (size--)
+		print_field("  Used Handle: %d", *handles++);
+}
+
+static void mgmt_mesh_send_cmd(const void *data, uint16_t size)
+{
+	const uint8_t *addr = data;
+	uint8_t addr_type = get_u8(data + 6);
+	uint64_t instant = get_le64(data + 7);
+	uint16_t delay = get_le16(data + 15);
+	uint8_t cnt = get_u8(data + 17);
+	uint8_t adv_data_len = get_u8(data + 18);
+
+	data += 19;
+	size -= 19;
+	print_bdaddr(addr);
+	print_field("Addr Type: %d", addr_type);
+	print_field("Instant: 0x%16.16" PRIx64, instant);
+	print_field("Delay: %d", delay);
+	print_field("Count: %d", cnt);
+	print_field("Data Length: %d", adv_data_len);
+	print_hex_field("Data", data, size);
+}
+
+static void mgmt_mesh_send_rsp(const void *data, uint16_t size)
+{
+	uint8_t handle = get_u8(data);
+
+	print_field("Handle: %d", handle);
+}
+
+static void mgmt_mesh_send_cancel_cmd(const void *data, uint16_t size)
+{
+	uint8_t handle = get_u8(data);
+
+	print_field("Handle: %d", handle);
+}
+
 struct mgmt_data {
 	uint16_t opcode;
 	const char *str;
@@ -14448,6 +14516,18 @@ static const struct mgmt_data mgmt_command_table[] = {
 				mgmt_add_adv_monitor_patterns_rssi_cmd, 8,
 									false,
 				mgmt_add_adv_monitor_patterns_rsp, 2, true},
+	{ 0x0057, "Set Mesh Receiver",
+				mgmt_set_mesh_receiver_cmd, 6, false,
+				mgmt_null_rsp, 0, true},
+	{ 0x0058, "Read Mesh Features",
+				mgmt_null_cmd, 0, true,
+				mgmt_read_mesh_features_rsp, 4, false},
+	{ 0x0059, "Mesh Send",
+				mgmt_mesh_send_cmd, 19, false,
+				mgmt_mesh_send_rsp, 1, true},
+	{ 0x0056, "Mesh Send Cancel",
+				mgmt_mesh_send_cancel_cmd, 1, true,
+				mgmt_null_rsp, 0, true},
 	{ }
 };
 
@@ -14945,6 +15025,33 @@ static void mgmt_adv_monitor_device_lost_evt(const void *data, uint16_t size)
 	print_field("Addr Type: %d", addr_type);
 }
 
+static void mgmt_mesh_device_found_evt(const void *data, uint16_t size)
+{
+	const uint8_t *addr = data;
+	uint8_t addr_type = get_u8(data + 6);
+	int8_t rssi = get_s8(data + 7);
+	uint64_t instant = get_le64(data + 8);
+	uint32_t flags = get_le32(data + 16);
+	uint16_t eir_len = get_le16(data + 20);
+	const uint8_t *eir_data = data + 22;
+
+	print_bdaddr(addr);
+	print_field("Addr Type: %d", addr_type);
+	print_field("RSSI: %d", rssi);
+	print_field("Instant: 0x%16.16" PRIx64, instant);
+	mgmt_print_device_flags(flags);
+	print_field("EIR Length: %d", eir_len);
+	size -= 22;
+	print_hex_field("EIR Data", eir_data, size);
+}
+
+static void mgmt_mesh_packet_cmplt_evt(const void *data, uint16_t size)
+{
+	uint8_t handle = get_u8(data);
+
+	print_field("Handle: %d", handle);
+}
+
 static const struct mgmt_data mgmt_event_table[] = {
 	{ 0x0001, "Command Complete",
 			mgmt_command_complete_evt, 3, false },
@@ -15038,6 +15145,10 @@ static const struct mgmt_data mgmt_event_table[] = {
 			mgmt_adv_monitor_device_found_evt, 16, false },
 	{ 0x0030, "ADV Monitor Device Lost",
 			mgmt_adv_monitor_device_lost_evt, 9, true },
+	{ 0x0031, "Mesh Device Found",
+			mgmt_mesh_device_found_evt, 22, false },
+	{ 0x0032, "Mesh Packet Complete",
+			mgmt_mesh_packet_cmplt_evt, 1, true },
 	{ }
 };