feat(Go-Tool)：新增二分法查找算法及其单测、插入查询及其单测、lomuto划分查询第k小元素及其单测、归并排序及其单测、快速排序及其单测.

util/sort/MergeSort_test.go

@@ -0,0 +1,42 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2020/8/19 11:45
+ *  @Description：
+ */
+
+package sort
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestMergeSort(t *testing.T) {
+	list1 := []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
+	MergeSort(list1)
+	for _, r := range list1 {
+		fmt.Print(r, "  ")
+	}
+	fmt.Println()
+
+	list2 := []int{10, 9, 8, 7, 6, 5, 4, 3, 2, 1}
+	MergeSort(list2)
+	for _, r := range list2 {
+		fmt.Print(r, "  ")
+	}
+	fmt.Println()
+
+	list3 := []int{100, 5, 222, 312, 552, 354, 8, 21, 90, 2, 0, 12, 345, 67}
+	MergeSort(list3)
+	for _, r := range list3 {
+		fmt.Print(r, "  ")
+	}
+	fmt.Println()
+
+	list4 := []int{1, 19, 42, 7, 3131, 44, 56, 123, 589, 21, 975, 123, 5467, 143, 7, 321, 77, 3}
+	MergeSort(list4)
+	for _, r := range list4 {
+		fmt.Print(r, "  ")
+	}
+	fmt.Println()
+}