Implement basic gui for profile selection. Still doesn't do anything

stm-firmware/shell.c

@@ -942,7 +942,7 @@ static shellmatta_cmd_t cmd[21] = {
 		.cmd = "execute",
 		.cmdAlias = NULL,
 		.helpText = "Execute Temp Profile",
-		.usageText = "",
+		.usageText = "execute /path/to/script.tpr",
 		.cmdFct = shell_cmd_execute,
 		.next = NULL,
 	}