Common:
* wrap dictionary data into `BrotliDictionary` structure
* replace public constant with getter `BrotliGetDictionary`
* reformat dictionary data
Decoder:
* adopt common changes
* clarify acceptable instance usage patterns
* hold reference to dictionary in state
Encoder:
* adopt common changes
* eliminate PIC spots in `CreateBackwardReferences`
* add per-chunk ratio guards for q0 and q1
* precompute relative distances to avoid repeated calculations
* prostpone hasher allocation/initialization
* refactor Hashers to be class-like structure
* further improvements for 1MiB+ inputs
* added new hasher type; made hashers more configurable
Java:
* Pull byte->int magic to `IntReader` from `BitReader`
* pull `BROTLI_MAX_BACKWARD_LIMIT` to constants
* split generic and Zopfli backward references code
* pull hashers init and stitch invocation to encoder
* make `dictionary_hash` a compilation unit
* add `size hint` parameter
* add new hasher
* use `size hint` to pick new hasher for q4
* modernize clz guard (fix#495)
* move `hash to binary tree` to separate file
* add `Initialize` and `Cleanup` to all hashers
* do not raise OOM if malloc(0) == NULL (fix#500)
* pad dictionary LUTs to length 32, etc. (#493)
* avoid using INFINITY constant (#496)
* make dictionary_hash.h more compact
* add "disable literal context modelling" parameter
* fix comment position in `context.h`
* fix typo in internal quality constant name
* deduplicate `BuildMetaBlockGreedy` code
* simplify aggregation in `ChooseContextMap`
* doxygenize and update API documentation
* fix spelling
* add "fuzz" corpus for java decoder to improve coverage
* use upper-case-snake names for dictionary constant definitions
* use `LDFLAGS` in conventional `Makefile`
* move `common/port.h` to `includes/port.h`
* replace magic more magic numbers with constants
* artificially limit window size to 2^18 for quality 0 and 1
* use fixed shifts for quality 0 and 1 hashes
* removed `BrotliEncoderWriteMetadata`
* added `BROTLI_OPERATION_EMIT_METADATA` instead
* deprecated low-level API
* fixed MSVC warnings
* add Brotli*TakeOutput methods
* * flushing now doesn't require additional call
* add Brotli*Version methods
* moved public headers to 'public' directory
* removed C++ API
* do not assume STDC_VERSION is defined
