v1.2.0 - Code update to use new php 8.0 features

Code update to use new features of php 8.0, like match.

Bug fixing and typo correction release

Corrected bug decoding XMP data. Corrected typos in README.md. Added display of image data (i.e., EXIF data) to the test example.

Multiple concurrent languages support

Support has been added for multiple concurrent languages in the caption/description field.

EXIF decoding bug corrected

v1.0.2

Bug decoding EXIF data fixed

Minor corrections and functional enhancements

• Improved namespace handing in XmpDocument class
• Added option read_ony in Jpeg and Metadata to read the image data file without reading/importing the whole
  image, reducing memory usage and improving reading speed
• Added fields with extension _FMT in Metadata covering EXIF data in which data is pre-formatted
• Updated locale translation file

Initial release

Update README.md

Signed-off-by: Claude Diderich <[email protected]>