Set intensity target and tone mapping data in JxlEncoderSetBasicInfo
Set intensity target and tone mapping data in JxlEncoderSetBasicInfo

Fixes #694.

libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl,libjxl/libjxl