Add Google Apps Script

[fridde]

Added Google Apps Script.

https://github.com/oshliaer/google-apps-script-awesome-list

[Explain what this list is about and why it should be included here.] This link is about Google Apps Script, a dialect of JavaScript used within Google Workspace.

By submitting this pull request I confirm I've read and complied with the below requirements.

Failure to properly do so will just result in the pull request being closed and everyone's time wasted. Please read it twice. Most people miss many things.

• [x] I have read and understood the contribution guidelines.
• [x] This pull request has a descriptive title. For example, Add [Name of List], not Update readme.md or Add an awesome list.
• [x] The list I added has been around for at least 20 days,
• [x] The list I added is a non-generated Markdown file in a GitHub repo,
• [x] The list I added is not a duplicate

[SpinYang]

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