BaseTools: Copy Brotli algorithm 3rd party source code for tool

- Copy Brotli algorithm 3rd party source code for tool

Cc: Liming Gao <liming.gao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Bell Song <binx.song@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

BaseTools/Source/C/BrotliCompress/enc/literal_cost.h

@@ -0,0 +1,30 @@
+/* Copyright 2013 Google Inc. All Rights Reserved.
+
+   Distributed under MIT license.
+   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+*/
+
+/* Literal cost model to allow backward reference replacement to be efficient.
+*/
+
+#ifndef BROTLI_ENC_LITERAL_COST_H_
+#define BROTLI_ENC_LITERAL_COST_H_
+
+#include "../common/types.h"
+#include "./port.h"
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+/* Estimates how many bits the literals in the interval [pos, pos + len) in the
+   ringbuffer (data, mask) will take entropy coded and writes these estimates
+   to the cost[0..len) array. */
+BROTLI_INTERNAL void BrotliEstimateBitCostsForLiterals(
+    size_t pos, size_t len, size_t mask, const uint8_t *data, float *cost);
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}  /* extern "C" */
+#endif
+
+#endif  /* BROTLI_ENC_LITERAL_COST_H_ */