feat(chapter1): add go code to chapter1

1.add go code to chapter_computational_complexity
2.add go code to space_time_tradeoff.md
3. Indentation of Go code is tab in *.go , 4 spaces in *.md

codes/go/chapter_computational_complexity/leetcode_two_sum_test.go

@@ -0,0 +1,24 @@
+// File: leetcode_two_sum.go
+// Created Time: 2022-11-25
+// Author: reanon (793584285@qq.com)
+
+package chapter_computational_complexity
+
+import (
+	"testing"
+)
+
+func TestTwoSum(t *testing.T) {
+	// ======= Test Case =======
+	nums := []int{2, 7, 11, 15}
+	target := 9
+
+	// ====== Driver Code ======
+	// 方法一：暴力解法
+	res := twoSumBruteForce(nums, target)
+	t.Log("brute force:", res)
+
+	// 方法二：哈希表
+	res = twoSumHashTable(nums, target)
+	t.Log("hash table:", res)
+}