Update TODO

TODO

@@ -1,3 +1,31 @@
+* Add additional hex mode formats
+
+ - Support traditional hex output format such as:
+
+  00000000  74 65 73 74 20 74 65 73  74 20 74 65 73 74 20 74  |test test test t|
+  00000010  65 73 74 64 66 0a 61 0a  66 61 0a 66 0a 61 73 66  |estdf.a.fa.f.asf|
+  00000020  64 61 64 73 66 61 73 66  64 61 73 64 66 61 64 73  |dadsfasfdasdfads|
+  00000030  66 0a 61 73 64 66 61 64  73 66 61 73 64 66 61 73  |f.asdfadsfasdfas|
+  00000040  64 66 0a 61 73 64 66 61  64 73 66 61 73 64 66 61  |df.asdfadsfasdfa|
+  00000050  73 64 66 66 64 61 73 64  66 0a 0a 31 32 33 31 0a  |sdffdasdf..1231.|
+  00000060  65 32 31 64 73 77 65 64  0a 0a                    |e21dswed..|
+  0000006a
+
+  With configurable width output (4, 8, 16 bytes etc.). E.g. config file:
+
+   hex-mode-width = 16
+
+  With and without timestamp support for each broken up line.
+
+ * Add support for activity based time stamping in both normal and hex-mode.
+
+   Will print a new timestamp if there is no input activity within the time
+   defined in the configuration file, e.g.:
+
+    timestamp-timeout = 200
+
+   Time is in ms.
+
 * Line mode feature
 
   Only send line when pressing enter. Maybe even add readline support so one