feat(go): support new features with go code (#565)

* feat(go): support hash map chaining

* feat(go): support hash map open address

* feat(go): support simple hash

* feat(go): support top k heap

* feat(go): support subset sum I

* feat(go): support subset sum native

* feat(go): support subset sum II

* fix(go): fix some problem

codes/go/chapter_hashing/simple_hash.go

@@ -0,0 +1,55 @@
+// File: simple_hash.go
+// Created Time: 2023-06-23
+// Author: Reanon (793584285@qq.com)
+
+package chapter_hashing
+
+import "fmt"
+
+/* 加法哈希 */
+func addHash(key string) int {
+	var hash int64
+	var modulus int64
+
+	modulus = 1000000007
+	for _, b := range []byte(key) {
+		hash = (hash + int64(b)) % modulus
+	}
+	return int(hash)
+}
+
+/* 乘法哈希 */
+func mulHash(key string) int {
+	var hash int64
+	var modulus int64
+
+	modulus = 1000000007
+	for _, b := range []byte(key) {
+		hash = (31*hash + int64(b)) % modulus
+	}
+	return int(hash)
+}
+
+/* 异或哈希 */
+func xorHash(key string) int {
+	hash := 0
+	modulus := 1000000007
+	for _, b := range []byte(key) {
+		fmt.Println(int(b))
+		hash ^= int(b)
+		hash = (31*hash + int(b)) % modulus
+	}
+	return hash & modulus
+}
+
+/* 旋转哈希 */
+func rotHash(key string) int {
+	var hash int64
+	var modulus int64
+
+	modulus = 1000000007
+	for _, b := range []byte(key) {
+		hash = ((hash << 4) ^ (hash >> 28) ^ int64(b)) % modulus
+	}
+	return int(hash)
+}