Major changes, including Brotli and Lizard

- update of zstd-mt library
- add brotli v0.6.0
- add lizard v2.0
- xxhash is from zstd for lz4, lz5 and lizard now
- update also the documentation, where needed

C/brotli/common/dictionary.h

@@ -9,8 +9,8 @@
 #ifndef BROTLI_COMMON_DICTIONARY_H_
 #define BROTLI_COMMON_DICTIONARY_H_
 
-#include <brotli/port.h>
-#include <brotli/types.h>
+#include "../port.h"
+#include "../types.h"
 
 #if defined(__cplusplus) || defined(c_plusplus)
 extern "C" {

C/brotli/common/version.h

@@ -14,6 +14,6 @@
    BrotliEncoderVersion methods. */
 
 /* Semantic version, calculated as (MAJOR << 24) | (MINOR << 12) | PATCH */
-#define BROTLI_VERSION 0x0006000
+#define BROTLI_VERSION 0x1000000
 
 #endif  /* BROTLI_COMMON_VERSION_H_ */