* new compile-time define LIBRAW_CALLOC_RAWSTORE
If defined: calloc() will be used for all big buffer allocations
to prevent uninitialized heap data leak
* Small allocations: calloc() instead of malloc() to prevent
uninitialized heap data leak
* Support for 4-component JPEG-compressed DNG files
* CR3-Qstep table: avoid wrong 64-bit code generation
* Fixed several bugs related to specially-crafted files processing
(thanks to OSS-Fuzz project)
OBS-URL: https://build.opensuse.org/package/show/graphics/libraw?expand=0&rev=163
