Log Message:
libexif: update to 0.6.23.

libexif-0.6.23 (2021-09-12):

  * Translation updates: es, pl, uk, fr
  * EXIF_TAG_SENSITIVITY_TYPE decoder added, added some more Exif 2.3 tags:
    - EXIF_TAG_STANDARD_OUTPUT_SENSITIVITY
    - EXIF_TAG_RECOMMENDED_EXPOSURE_INDEX
    - EXIF_TAG_ISO_SPEED
    - EXIF_TAG_ISO_SPEEDLatitudeYYY
    - EXIF_TAG_ISO_SPEEDLatitudeZZZ
    - EXIF_TAG_OFFSET_TIME
    - EXIF_TAG_OFFSET_TIME_ORIGINAL
    - EXIF_TAG_OFFSET_TIME_DIGITIZED
    - EXIF_TAG_IMAGE_DEPTH
  * be more relaxed to out of order JPG / EXIF dataheaders in files generated by \ 
some tools
  * default GPS IFD table added
  * Decode more Nikon Makernote tag names
  * Added Apple iOS Makernote
  * Security fixes:
    * CVE-2020-0198: unsigned integer overflow in exif_data_load_data_content
    * CVE-2020-0452: compiler optimization could remove an a
      bufferoverflow check, making a buffer overflow possible with some
      EXIF tags
    * some more denial of service (compute time or stack exhaustion) counter-measures
      added that avoid minutes of decoding time with malformed files found
      by OSS-Fuzz