feat(go): support basic pkg

codes/go/chapter_tree/binary_search_tree.go

@@ -0,0 +1,20 @@
+// File: binary_search_tree.go
+// Created Time: 2022-11-25
+// Author: Reanon (793584285@qq.com)
+
+package chapter_tree
+
+import (
+	. "github.com/krahets/hello-algo/pkg"
+	"sort"
+)
+
+type BinarySearchTree struct {
+	root *TreeNode
+}
+
+func NewBinarySearchTree(nums []int) *BinarySearchTree {
+	// 排序数组
+	sort.Ints(nums)
+	return nil
+}