log: support to disable log rotate by hours

[buddh0]

Description

log: support to disable log rotate by hours

Rationale

#114 suggest that

So would be nice to add an option into the config file to:

1. rotate by size
2. rotate by date (daily, hourly, weekly, monthly, etc)
3. disable rotation altogether

to support type 1, only rotate by size,
we should have the ablitiy to disable the default one hour rotation, this PR add this support

by setting RotateHours=0 in config.toml, rotate by hours is disabled

Example

add an example CLI or API response...

Changes

Notable changes:

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