New feature: "Large Window Brotli" (#640)

* New feature: "Large Window Brotli"

By setting special encoder/decoder flag it is now possible to extend
LZ-window up to 30 bits; though produced stream will not be RFC7932
compliant.

Added new dictionary generator - "DSH". It combines speed of "Sieve"
and quality of "DM". Plus utilities to prepare train corpora
(remove unique strings).

Improved compression ratio: now two sub-blocks could be stitched:
the last copy command could be extended to span the next sub-block.

Fixed compression ineffectiveness caused by floating numbers rounding and
wrong cost heuristic.

Other C changes:
 - combined / moved `context.h` to `common`
 - moved transforms to `common`
 - unified some aspects of code formatting
 - added an abstraction for encoder (static) dictionary
 - moved default allocator/deallocator functions to `common`

brotli CLI:
 - window size is auto-adjusted if not specified explicitly

Java:
 - added "eager" decoding both to JNI wrapper and pure decoder
 - huge speed-up of `DictionaryData` initialization

* Add dictionaryless compressed dictionary

* Fix `sources.lst`

* Fix `sources.lst` and add a note that `libtool` is also required.

* Update setup.py

* Fix `EagerStreamTest`

* Fix BUILD file

* Add missing `libdivsufsort` dependency

* Fix "unused parameter" warning.

1 files changed, 6 insertions, 0 deletions

diff --git a/java/org/brotli/dec/BUILD b/java/org/brotli/dec/BUILD
index 8a2558c..e6d3a4d 100644
--- a/java/org/brotli/dec/BUILD
+++ b/java/org/brotli/dec/BUILD
@@ -43,6 +43,12 @@ java_test(
 )
 
 java_test(
+    name = "EagerStreamTest",
+    test_class = "org.brotli.dec.EagerStreamTest",
+    runtime_deps = [":test_lib"],
+)
+
+java_test(
     name = "SynthTest",
     test_class = "org.brotli.dec.SynthTest",
     runtime_deps = [":test_lib"],