Features:

• Allow RPC model refinement with GCPs.
• Add CLI and API for Gram-Schmidt pan-sharpening.
• Support for LZW compression and Cloud Optimised GeoTIFF output.
• Support for custom image creation options.
• Round and clip image data when necessary, before writing to file.
• Copy source image colour interpretation to output.

Fixes:

• Change duplicated short form CLI options.
• Improve test images.
• Improve errors and warnings.