feat/cusomize: support customize parameter by env

[whalecold]

What type of PR is this?

What this PR does / why we need it (en: English/zh: Chinese):

en: zh: 支持从环境变量设置参数以下参数：

• 是否开启 auth
• token path
• istiod addr
• istiod name

Which issue(s) this PR fixes:

[bytedance-oss-robot[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: CoderPoet, ppzqh, whalecold

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