fix(cmd/hz): unexpected generated model file path

[3DRX]

using strings.Contains

What type of PR is this?

Check the PR title.

• This PR title match the format: <type>(optional scope): <description>
• The description of this PR title is user-oriented and clear enough for others to understand.
• Attach the PR updating the user documentation if the current PR requires user awareness at the usage level. User docs repo

Translate the PR title into Chinese.

解决：生成 model 文件路径不符合预期

More detailed description for this PR(en: English/zh: Chinese).

en: Originally in Plugin.fixGoPackage, we used strings.Contains to decide if the go_package string already contains the top-level package name. Still, as #1154 shows, this can cause trouble when go_package happens to contain a substring that's identical to top level package name.
zh: 原有的 Plugin.fixGoPackage 中使用 strings.Contains 来判断 go_package 中是否包含项目包名，但是如 #1154 ，这样会导致路径其他地方包含同样字串时路径错误。

Which issue(s) this PR fixes:

Fixes #1154

[3DRX]

关于测试：plugin_test.go 中 TestFixModelPathAndPackage 内有这段

	for _, r := range ret1 {
		tmp := r[0]
		if !strings.Contains(tmp, plu.Package) {
			if strings.HasPrefix(tmp, "/") {
				tmp = plu.Package + tmp
			} else {
				tmp = plu.Package + "/" + tmp
			}
		}
		result, _ := plu.fixModelPathAndPackage(tmp)
		if result != r[1] {
			t.Fatalf("want go package: %s, but get: %s", r[1], result)
		}
	}

是否应该更新这个测试用例，还是追加一个测试用例。

[Skyenought]

你添加一个测试用例吧

[3DRX]

你添加一个测试用例吧

我提交了一个 commit 把一部分逻辑提到一个函数里使其更好测试，并添加了一组测试用例。

[Skyenought]

lgtm

[Skyenought]

@FGYFFFF