Increase Watermark Robustness about trend HOT 1 OPEN

First starting points:

• Update the squashing method for all watermarks so that it only returns one watermark based on the length (robustness increase for all watermarks)
• Update the SizedWatermark so that it uses the size of the watermark (robustness increase for Sized Trendmarks)
• Add optional parameter for the watermark extraction that gives information if multiple unique watermarks might be included (like multipleWatermarks = true). Optionally add a suggested number of watermarks counts if the previous parameter was set to true.
• Check error correcting codes for the CRC32 trendmarks
• Update Trendmark documentation with recommendations for robustness (for example, suggest using the SizedCRC32Watermark if robustness is important and mention the trade-offs).

Minor thing:

• Update all the naming from SizedWatermark to SizedTrendmark etc.

Future ideas:

• Usage of large language models to let the model check which was the original watermark

from trend.