iccjpeg: Add README with license information.

third_party/iccjpeg/iccjpeg.h

 /*
  * iccprofile.h
  *
+ * Copyright (C) 1991-1998, Thomas G. Lane.
+ * This file is part of the Independent JPEG Group's software.
+ * For conditions of distribution and use, see the accompanying README file.

[Nico, 2016/07/29 22:27:43]

are you upstreaming this change somewhere?

+ *
  * This file provides code to read and write International Color Consortium
  * (ICC) device profiles embedded in JFIF JPEG image files.  The ICC has
  * defined a standard format for including such data in JPEG "APP2" markers.
  * The code given here does not know anything about the internal structure
  * of the ICC profile data; it just knows how to put the profile data into
  * a JPEG file being written, or get it back out when reading.
  *
  * This code depends on new features added to the IJG JPEG library as of
  * IJG release 6b; it will not compile or work with older IJG versions.
  *
@@ skipping 55 matching lines @@
  * and must be freed by the caller with free() when the caller no longer
  * needs it.  (Alternatively, we could write this routine to use the
  * IJG library's memory allocator, so that the data would be freed implicitly
  * at jpeg_finish_decompress() time.  But it seems likely that many apps
  * will prefer to have the data stick around after decompression finishes.)
  */
 
 extern boolean read_icc_profile JPP((j_decompress_ptr cinfo,
                                      JOCTET **icc_data_ptr,
                                      unsigned int *icc_data_len));