Log Message:
zstd: updated to 1.4.5

Zstd v1.4.5 Release Notes

This is a fairly important release which includes performance improvements and \ 
new major CLI features. It also fixes a few corner cases, making it a \ 
recommended upgrade.

perf: Improved decompression speed (x64 >+5%, ARM >+15%), by @terrelln
perf: Automatically downsizes ZSTD_DCtx when too large for too long
perf: Improved fast compression speed on aarch64
perf: Small level 1 compression speed gains (depending on compiler)
fix: Compression ratio regression on huge files (> 3 GB) using high levels \ 
(--ultra) and multithreading, by @terrelln
api: ZDICT_finalizeDictionary() is promoted to stable
api: new experimental parameter ZSTD_d_stableOutBuffer
build: Generate a single-file libzstd library
build: Relative includes, no longer require -I flags for zstd lib subdirs
build: zstd now compiles cleanly under -pedantic
build: zstd now compiles with make-4.3
build: Support mingw cross-compilation from Linux, by @Ericson2314
build: Meson multi-thread build fix on windows
build: Some misc icc fixes backed by new ci test on travis
cli: New --patch-from command, create and apply patches from files, by @bimbashreshta
cli: --filelist= : Provide a list of files to operate upon from a file
cli: -b can now benchmark multiple files in decompression mode
cli: New --no-content-size command
cli: New --show-default-cparams command
misc: new diagnosis tool, checked_flipped_bits, in contrib/, by @felixhandte
misc: Extend largeNbDicts benchmark to compression
misc: experimental edit-distance match finder in contrib/
doc: Improved beginner CONTRIBUTING.md docs
doc: New issue templates for zstd