DWF Calculator improvements [to be discussed]

[leendertvanwolfswinkel]

• Replace spatialite input selector with a normal file selector with .sqlite filter
• Rename: 'Start time of day (HH:MM:SS)' --> 'DWF Timeseries start time (HH:MM:SS)'
• Rename: 'Simulation duration' --> 'DWF timeseries duration (seconds)'
• Limit the DWF timeseries duration (seconds) to the range 1 to 86.400 seconds (24h)
• Rename: 'DWF progress file (.csv)' --> 'Intra-day distribution (.csv)'
• Below the 'Intra-day distribution' file selector, add a editable table widget (24 rows, 2 columns ["hour","fraction") showing the current distribution, pre-filled with the defaults the tool uses. Loading a CSV should overwrite the values in the table widget, but the values used by the algorithm should always be the ones in the table widget.
• The above is too complex to implement in a Processing tool UI, but if it is possible, would be great. Other option is to just have the table widget pre-filled with defaults, and instead of loading a csv, users can copy-paste their data.
• Add option to use DWF in surfaces (as opposed to impervious surfaces) as input

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Other idea: simplify this tool to always produce a 24h timeseries from 12 midnight to 12 midnight, and let the 3Di API Client plugin select a subset from this timeseries based on simulation start time / end time and if simulation duration > 24h, repeat the dwf timeseries

[leendertvanwolfswinkel]

Replaced by #1050