output - when count rules's output has no content

[fukusuket]

What Changed

I would like to implement #1324 by dividing it into several PRs. First, I modified it to output "-" to console.
First implement the following: Related #1342

• 2. ExtraFieldInfo is blank (··) but would nice to have it as - which we use for n/a. So ·· -> · - ·

Evidence

I confirmed that hyphens are output as shown below.

This PR:

% ./hayabusa csv-timeline -d ../hayabusa-sample-evtx -r test2.yml -w -q
Start time: 2024/05/18 13:08
...
Timestamp · RuleTitle · Level · Computer · Channel · EventID · RecordID · Details · ExtraFieldInfo
2016-09-20 01:50:06.477 +09:00 · TEST_TITLE · info · - · - · - · - · Count: 3561 ¦ IpAddress: 192.168.198.149 · -
2021-10-24 06:50:11.666 +09:00 · TEST_TITLE · info · - · - · - · - · Count: 2 ¦ IpAddress: 10.23.23.9 · -

2.15.0:

% ./hayabusa-2.15.0-mac-aarch64 csv-timeline -d ../hayabusa-sample-evtx -r test2.yml -w -q
Start time: 2024/05/18 13:09
...
Timestamp · RuleTitle · Level · Computer · Channel · EventID · RecordID · Details · ExtraFieldInfo
2016-09-20 01:50:06.477 +09:00 · TEST_TITLE · info · - · - · - ·  · [condition] count() by IpAddress >= 2 in timeframe [result] count: 3561 IpAddress:192.168.198.149 timeframe:5d ·
2021-10-24 06:50:11.666 +09:00 · TEST_TITLE · info · - · - · - ·  · [condition] count() by IpAddress >= 2 in timeframe [result] count: 2 IpAddress:10.23.23.9 timeframe:5d ·

I would appreciate it if you could check it out when you have time🙏

[YamatoSecurity]

@fukusuket LGTM! Thanks!