Add support for CONFIGURATION command

I have no idea what it does unfortunately.

Thanks to Yannick BARBEAUX for the report.

cmd.c

 const char *videohub_commands_text[NUM_COMMANDS] = {
 	[CMD_PROTOCOL_PREAMBLE]    = "PROTOCOL PREAMBLE",
 	[CMD_VIDEOHUB_DEVICE]      = "VIDEOHUB DEVICE",
+	[CMD_CONFIGURATION]        = "CONFIGURATION",
 	[CMD_INPUT_LABELS]         = "INPUT LABELS",
 	[CMD_OUTPUT_LABELS]        = "OUTPUT LABELS",
 	[CMD_VIDEO_OUTPUT_LOCKS]   = "VIDEO OUTPUT LOCKS",
 struct videohub_commands videohub_commands[NUM_COMMANDS] = {
 	[CMD_PROTOCOL_PREAMBLE]    = { .cmd = CMD_PROTOCOL_PREAMBLE   , .type = PARSE_CUSTOM },
 	[CMD_VIDEOHUB_DEVICE]      = { .cmd = CMD_VIDEOHUB_DEVICE     , .type = PARSE_CUSTOM },
+	[CMD_CONFIGURATION]        = { .cmd = CMD_CONFIGURATION       , .type = PARSE_CUSTOM },
 	[CMD_INPUT_LABELS]         = { .cmd = CMD_INPUT_LABELS        , .type = PARSE_LABEL,
 		.ports1 = OFS(inputs),
 		.port_id1 = "video input",
 				q("Please report this line to author's email: georgi@unixsol.org\n");
 			}
 			break;
+		case CMD_CONFIGURATION:
+			if ((p = parse_text(line, "Take Mode: "))) {
+				d->device.conf_take_mode = streq(p, "true");
+			}
 		case CMD_NAK:
 			ret = false;
 			break;

cmd.h

 
 #include <stdbool.h>
 
-#define NUM_COMMANDS 24
+#define NUM_COMMANDS 25
 
 enum vcmd {
 	CMD_PROTOCOL_PREAMBLE,
 	CMD_VIDEOHUB_DEVICE,
+	CMD_CONFIGURATION,
 	CMD_INPUT_LABELS,
 	CMD_OUTPUT_LABELS,
 	CMD_VIDEO_OUTPUT_LOCKS,

data.h

 struct device_desc {
 	bool			dev_present;
 	bool			needs_fw_update;
+	bool			conf_take_mode;
 	char			protocol_ver[16];
 	char			model_name[MAX_NAME_LEN];
 	char			friendly_name[MAX_NAME_LEN];

test/input-17.txt

 Debug mode: yes
 Power: both
 
+CONFIGURATION:
+Take Mode: true
+
 INPUT LABELS:
 0 Windows 1
 1 Windows 2