Use existing TS file as base oscillation

[SebastianSchmidl]

Use an existing time series as base oscillation for a new dataset. This allows injecting our anomalies into existing time series. The file must be formatted in our canonical file format.

GutenTAG tries to parse the ground truth (label) information to prevent anomaly overlaps.

Example configuration:

timeseries:
  - name: "test"
    base-oscillations:
      - kind: file
        path: path/to/file.csv
        channel: 0

[SebastianSchmidl]

We have a contribution that tries to address this: #6

[SebastianSchmidl]

Base feature implemented in #6 (merged). The following points are still open:

• Test interaction with the formula API
• How to deal with existing ground truth information. The current implementation assumes a clean time series.