feat: add header for auto-generated go files by gox

[CarlJi]

Effect:

➜  101-Hello-world git:(main) ✗ cat gop_autogen.go
// Code generated by gox; DO NOT EDIT.

package main

import "fmt"

const _ = true
//line 101-Hello-world/hello-1.gop:5
func main() {
//line 101-Hello-world/hello-1.gop:5:1
	fmt.Println("Hello world")
}

The predefined generated header mainly refer to go generate .

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (78a7a4c) 95.75% compared to head (8b6afad) 95.76%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #369   +/-   ##
=======================================
  Coverage   95.75%   95.76%           
=======================================
  Files          15       15           
  Lines        5918     5920    +2     
=======================================
+ Hits         5667     5669    +2     
  Misses        192      192           
  Partials       59       59           

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