Improve console to ignore escape sequences

sys/dev/console.c

@@ -94,6 +94,16 @@ Console_Gets(char *str, size_t n)
 	    str[i] = '\0';
 	    return;
 	}
+	if (ch == '\t') {
+	    Console_Putc('\t');
+	    str[i] = '\t';
+	    continue;
+	}
+	if (ch < 0x20)
+	{
+	    // Unprintable character
+	    continue;
+	}
 	Console_Putc(ch);
 	str[i] = ch;
     }