Diive

- Updated (and cleaned) notebook `StepwiseMeteoScreeningFromDatabase.ipynb`

New features

- In `StepwiseOutlierDetection`, it is now possible to re-run an outlier detection method. The re-run(s)
would produce flag(s) with the same name(s) as for the first (original) run. Therefore, an integer is added
to the flag name. For example, if the test z-score daytime/nighttime is run the first time, it produces the
flag with the name `FLAG_TA_T1_2_1_OUTLIER_ZSCOREDTNT_TEST`. When the test is run again (e.g. with different
settings) then the name of the flag of this second run is `FLAG_TA_T1_2_1_OUTLIER_ZSCOREDTNT_2_TEST`,
etc ... The script now checks whether a flag of the same name was already created, in which case an
integer is added to the flag name. These re-runs are now available in addition to the `repeat=True` keyword.
(`diive.pkgs.outlierdetection.stepwiseoutlierdetection.StepwiseOutlierDetection.addflag`)
Example:
- `METHOD` with `SETTINGS` is applied with `repeat=True` and therefore repeated until no more outliers
were found with these settings. The name of the flag produced is `TEST_METHOD_FLAG`.
- Next, `METHOD` is applied again with `repeat=True`, but this time with different `SETTINGS`. Like before,
the test is repeated until no more outliers were found with the new settings. The name of the flag produced
is `TEST_METHOD_2_FLAG`.
- `METHOD` can be re-run any number of times, each time producing a new
flag: `TEST_METHOD_3_FLAG`, `TEST_METHOD_4_FLAG`, ...
- Added new function to format timestamps to FLUXNET ISO
format (`YYYYMMDDhhmm`) (`diive.core.times.times.format_timestamp_to_fluxnet_format`)

Bugfixes

- Refactored and fixed class to reformat data for FLUXNET
upload (`diive.pkgs.formats.fluxnet.FormatEddyProFluxnetFileForUpload`)
- Fixed `None` error when reading data files (`diive.core.io.filereader.DataFileReader._parse_file`)

Notebooks

- Updated notebook `FormatEddyProFluxnetFileForUpload.ipynb`

New features

- Added new functions to extract info from a binary that was stored as
integer. These functions convert a subrange of bits from an integer or an integer series to floats with an
optional gain applied. See docstring of the respective functions for more
info. (`diive.pkgs.binary.extract.get_encoded_value_from_int`) (`diive.pkgs.binary.extract.get_encoded_value_series`)
- Added new filetype `RECORD_DAT_20HZ` (`diive/configs/filetypes/RECORD_DAT_20HZ.yml`) for eddy covariance
high-resolution (20Hz) raw data files recorded by the ETH `rECord` logging script.

- Fixed bugs in `FluxProcessingChain`, flag creation for missing values did not work because of the missing `repeat`
keyword (`diive.pkgs.fluxprocessingchain.fluxprocessingchain.FluxProcessingChain`)

Updates to stepwise outlier detection

Harmonized the way outlier flags are calculated. Outlier flags are all based on the same base
class `diive.core.base.flagbase.FlagBase` like before, but the base class now includes more code that
is shared by the different outlier detection methods. For example, `FlagBase` includes a method that
enables repeated execution of a single outlier detection method multiple times until all outliers
are removed. Results from all iterations are then combined into one single flag.

The class `StepwiseMeteoScreeningDb` that makes direct use of the stepwise outlier detection was
adjusted accordingly.

Notebooks

- Updated notebook `StepwiseMeteoScreeningFromDatabase.ipynb`

Removed features

- Removed outlier test based on seasonal-trend decomposition and z-score calculations (`OutlierSTLRZ`).
The test worked in principle, but at the moment it is unclear how to set reliable parameters. In addition
the test is slow when used with multiple years of high-resolution data. De-activated for the moment.

- Updated: many docstrings.