fix-bounding-box: Use relative rect for bounding box in G8RecognizedBlock
fix-bounding-box: Add cache clearing method. Update Template project
fix-bounding-box: Add conditions to test new bounding boxes
fix-bounding-box: Fix rect setter. Add tests
fix-bounding-box: Add sourceResolution property. Fix tests.
fix-bounding-box: Rename delegate method for preprocessing image
fix-bounding-box: Refactor custom preprocessing in tests
Merge pull request #116 from BamX/fix-bounding-box

Several fixes and additions related to performance and preprocessing.

Normalized boundingBox property. Added cache clearing method and source resolution property. Renamed delegate method from custom thresholder to custom preprocessor, with considerations for resizing the image.