Migrate Whisper Data Files to VictoriaMetrics

Is your feature request related to a problem? Please describe

As part of migrating data from Graphite to VictoriaMetrics, there is a need in back-populating Whisper data to VM. Currently, there seems to be no straightforward method for converting or importing this data directly into VictoriaMetrics. Therefore, I propose a feature that would allow VictoriaMetrics (possibly through the vmagent component) to parse, relabel, clean up, and import data from Whisper files/directories. The data should then be written to a remote URL specified in the remoteWrite.url parameter.

Describe the solution you'd like

1. Accept Path Input: component should accept a file or folder path that contains one or more Whisper files.
2. Date Range Processing: The feature should be able to accept a specified date range (start and end dates) for processing the Whisper files.
3. Parse Files: The Whisper files within the specified date range should be parsed accordingly.
4. Relabeling Configuration: Data parsed from Whisper files should be relabeled according to a specified relabel config, ideally mirroring the relabeling mechanism currently used in action: graphite
5. Data Push: Once the data has been parsed and relabeled, it should be pushed to the URL specified in the remoteWrite.url parameter.

Describe alternatives you've considered

No response

Additional information

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