Image-dataset-converter

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- using `wai_logging` instead of `wai.logging` as dependency now

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- requiring seppl>=0.2.13 now for placeholder support
- added placeholder support to tools: `idc-convert`, `idc-exec`
- added placeholder support to readers: `from-adams-ic`, `from-subdir-ic`, `from-blue-channel-is`, `from-grayscale-is`,
`from-indexed-png-is`, `from-layer-segments-is`, `from-adams-od`, `from-coco-od`, `from-opex-od`, `from-roicsv-od`,
`from-voc-od`, `from-yolo-od`, `from-data`, `from-pyfunc`, `poll-dir`
- added placeholder support to filters: `write-labels`
- added placeholder support to writers: `to-adams-ic`, `to-subdir-ic`, `to-blue-channel-is`, `to-grayscale-is`,
`to-indexed-png-is`, `to-layer-segments-is`, `to-adams-od`, `to-coco-od`, `to-opex-od`, `to-roicsv-od`,
`to-voc-od`, `to-yolo-od`, `to-data`

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- added `safe_deepcopy` method to idc.api._utils which creates a deep copy of an object if not None
- added `rgb-to-grayscale` filter to convert color images into gray scale ones
- added `sort-pixels` filter for grayscale images
- the following filters can operate on lists of records now as well: `inspec`, `metadata`, `metadata-from-name`
- added `metadata-od` filter for filtering object-detection annotations based on their meta-data
(e.g., scores from model predictions)
- the filters `discard-negatives` and `discard-invalid-images` now output how many were discarded/kept
when processing finishes

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- `LayerSegmentsImageSegmentationReader` now suggest using `--lenient` flag in exception in case image not binary
- added the `discard-by-name` filter that allows user to discard images based on name, either exact match of regexp
(matching sense can be inverted)
- requiring seppl>=0.2.10 now
- added support for aliases
- added `to_bluechannel`, `to_grayscale` and `to_indexedpng` image segmentation methods to `idc.api`
- added the `generate_palette_list` method to `idc.api` which turns a predefined palette name or comma-separated
list of RGB values into a flat list of int values, e.g., used for indexed PNG files
- exposed method `save_image` through `idc.api`
- `filter-labels` now handles not specifying any labels and only regexp
- `write-labels` filter now allows specification of custom separator
- `write-labels`: fixed retrieval of image-segmentation labels
- using `simple_palette_utils` dependency now
- `idc-convert` tool now flags aliases on the help screen with `*`
- the `from-voc-od` reader now has the `-r/--image_rel_path` option which gets injected before the `folder` property
from the XML file

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- added `setuptools` as dependency
- switched to underscores in project name
- using 90% as default quality for JPEG images now, can be overridden with environment variable `IDC_JPEG_QUALITY`
- added methods to idc.api module: `jpeg_quality()`, `array_to_image(...)`, `empty_image(...)`

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- limiting numpy to <2.0.0 due to problems with imgaug library