Make possible to download additional databases with ClamWin

[ulyszk]

However I added a config file and additional databases to freshclam, the update from ClamWin is not able to download additional files.

ClamAV update process started at Thu Nov 17 13:10:27 2022
daily database available for update (local version: 26722, remote version: 26723)
Current database is 1 version behind.
Downloading database patch # 26723...
Testing database: 'C:\Documents and Settings\All Users\.clamwin\db\tmp.1ad96b1574\clamav-ef7673e425f8fc0f823a645c42e561b9.tmp-daily.cld' ...
Database test passed.
daily.cld updated (version: 26723, sigs: 2011219, f-level: 90, builder: raynman)
main.cvd database is up-to-date (version: 62, sigs: 6647427, f-level: 90, builder: sigmgr)
bytecode.cvd database is up-to-date (version: 333, sigs: 92, f-level: 63, builder: awillia2)

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Completed
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I can run freshclam to update such databases. Can you add option to user freshclam with custom configuration using freshclam.conf?