[Enhancement] Improve Page Cropping using Document Rectification

[Udayraj123]

We can improve CropPage using control points and remapping instead of warpPerspective as well

• Nice visual transformations that explain this process https://felixhertlein.de/docrefine/home

More Links:

• Dewarping: https://github.com/gwxie/Document-Dewarping-with-Control-Points/blob/11b25e0354a8698a141d384057fdfd82835a8257/Source/utilsV4.py#L132
• Source: https://github.com/fh2019ustc/Awesome-Document-Image-Rectification
• https://github.com/ZZZHANG-jx/DocAligner

[Udayraj123]

Note: this task is supported in the experimental samples for now (in dev branch). But need further enhancements to become stable and reusable.