zstd: version 1.4.5 update

Add source files needed to properly compile / link to zstd
version 1.4.5

Utilities/Scripts/update-zstd.bash

@@ -8,7 +8,7 @@ readonly name="zstd"
 readonly ownership="zstd upstream <[email protected]>"
 readonly subtree="Utilities/cmzstd"
 readonly repo="https://github.com/facebook/zstd.git"
-readonly tag="v1.3.8"
+readonly tag="v1.4.5"
 readonly shortlog=false
 readonly paths="
   LICENSE

Utilities/cmzstd/CMakeLists.txt

@@ -21,7 +21,10 @@ add_library(cmzstd STATIC
   lib/compress/fse_compress.c
   lib/compress/hist.c
   lib/compress/huf_compress.c
+  lib/compress/zstd_compress_literals.c
   lib/compress/zstd_compress.c
+  lib/compress/zstd_compress_sequences.c
+  lib/compress/zstd_compress_superblock.c
   lib/compress/zstd_double_fast.c
   lib/compress/zstd_fast.c
   lib/compress/zstd_lazy.c