fix(examples): stack and volume segmentation

[sedghi]

fixes #1679

This pull request includes changes to the segmentation examples in the packages/adapters/examples directory to enhance the creation and representation of segmentations. The most important changes include the addition of a new function to create segmentation representations, updates to toolbar buttons for segmentation actions, and improvements to the DICOM loading process.

Enhancements to segmentation creation and representation:

• packages/adapters/examples/segmentationStack/index.ts: Added the createSegmentationRepresentation function to handle adding labelmap representations to viewports. Updated toolbar buttons to call this new function after segmentation actions. [1] [2] [3]
• packages/adapters/examples/segmentationVolume/index.ts: Added the createSegmentationRepresentation function to handle adding labelmap representations to multiple viewports. Updated toolbar buttons to call this new function after segmentation actions. [1] [2] [3]

Improvements to DICOM loading process:

• packages/adapters/examples/segmentationVolume/utils.ts: Refactored the readDicom and loadSegmentation functions to integrate the new createSegmentation function, which handles the creation of segmentations from reference images. [1] [2] [3]

Minor changes:

• utils/ExampleRunner/template-config.js: Changed the devtool configuration from source-map to eval-source-map for improved build performance during development.

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