src: improve logging

Adds new logging handler redirecting messages to the log file
located in the Samba shared directory (applies to live mode
clients, i.e: ogLive)

Parses log level configuration from ogclient.json. See:

{
	"opengnsys": {
		...
                "log": "INFO",
		...
	}
	...
}

Adds --debug option to set root logger level to DEBUG when starting
ogClient. Overrides log level from config file.

In addition:

- Replaces any occurence of print with a corresponding logging function.
- Unsets log level for handlers, use root logger level instead.
- Default level for root logger is INFO.
- Replaces level from response log messages to debug (ogRest)

1 files changed, 1 insertions, 1 deletions

diff --git a/cfg/ogclient.json b/cfg/ogclient.json
index 1a43d1b..b1f1f43 100644
--- a/cfg/ogclient.json
+++ b/cfg/ogclient.json
@@ -2,7 +2,7 @@
 	"opengnsys": {
 		"ip": "127.0.0.1",
 		"port": 8889,
-		"log": "DEBUG",
+		"log": "INFO",
 		"mode": "live",
 		"url": "https://127.0.0.1/opengnsys/varios/menubrowser.php",
 		"url_log": "http://localhost/cgi-bin/httpd-log.sh"