cli : new : added zstdless and zstdgrep tools
cli : fixed : status displays total amount decoded, even for file consisting of multiple frames (like pzstd)
cli : fixed : zstdcat
+library : changed : only public ZSTD_ symbols are now exposed
API : changed : zbuff prototypes now generate deprecation warnings
API : changed : streaming decompression implicit reset on starting new frame
API : added experimental : dictID retrieval functions