add CacheControl to Static config

[nathanfaucett]

Description

adds SetHeaders function option to Static config like express.js setHeaders function https://expressjs.com/en/resources/middleware/serve-static.html#setheaders

Fixes #2136

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)
• This change requires a documentation update

Checklist:

• For new functionalities I follow the inspiration of the express js framework and built them similar in usage
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I tried to make my code as fast as possible with as few allocations as possible
• I have made corresponding changes to the documentation - https://github.com/gofiber/docs for https://docs.gofiber.io/

Commit formatting:

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[welcome]

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[ReneWerner87]

• I have made corresponding changes to the documentation - https://github.com/gofiber/docs for https://docs.gofiber.io/

don´t forget this task

[nathanfaucett]

• I have made corresponding changes to the documentation - https://github.com/gofiber/docs for https://docs.gofiber.io/

don´t forget this task

@ReneWerner87 gofiber/docs#287

[welcome]

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