重构项目，现支持多线程操作

vendor/lz4/tests/test-lz4-skippable.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+SKIPFILE="goldenSamples/skip.bin"
+FPREFIX="tmp-lsk"
+
+set -e
+
+remove () {
+    rm "$FPREFIX"*
+}
+
+trap remove EXIT
+
+set -x
+
+lz4 -dc $SKIPFILE
+lz4 -dc < $SKIPFILE
+printf "Hello from Valid Frame!\n" | lz4 -c > $FPREFIX.lz4
+cat $SKIPFILE $FPREFIX.lz4 $SKIPFILE | lz4 -dc