Watermark class

Utility to encode/decode blind watermark to/from a mesh.

The Watermark type exposes the following members:

Method	Description
`encode_watermark(, input, text)`	Encode a text into mesh’ blind watermark.
`encode_watermark(, input, text, password)`	Encode a text into mesh’ blind watermark.
`encode_watermark(, input, text, password, permanent)`	Encode a text into mesh’ blind watermark.
`decode_watermark(, input)`	Decode the watermark from a mesh
`decode_watermark(, input, password)`	Decode the watermark from a mesh

Both Watermark.encode_watermark and Watermark.decode_watermark will perform license check Trial usage will throw exception, you can use TrialException.suppress_trial_exception to suppress the exception, but it will not lift the restriction here. A valid license is required to use these features without any restrictions.