Support ACL based on Domain/URL instead of IP

##### ISSUE TYPE

* Improvement Request

##### COMPONENT NAME

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Improvement Request (Functionality)
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##### CLOUDSTACK VERSION

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4.19
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##### CONFIGURATION

N/A

##### OS / ENVIRONMENT

N/A

##### SUMMARY

Note: This ticket is broken down as requested from the origianl post, https://github.com/apache/cloudstack/issues/8841

**Support ACL based on Domain/URL instead of IP**

- As a company, sometimes i would like to block access to specific sites (eg. google drive), which is based on domain.
- But i am unable to do so because, ACL Rules are based on explicitly specifying the IP address.
- Specifying the IP address/range of the intended website will be tedious and non-practical.

##### STEPS TO REPRODUCE

N/A

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N/A
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##### EXPECTED RESULTS

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To be able to manage ACL Rules more easily for enterprise use cases.
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##### ACTUAL RESULTS

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Unable to effectively block access to certain sites using URL/Domain
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Beginne damit, das verlinkte ursprüngliche Issue 8841 und die bestehende ACL-Funktionalität in CloudStack zu lesen. Lege fest, wie Regeln auf Basis von Domains/URLs konfiguriert und durchgesetzt werden sollen, und bestätige anschließend, dass das Verhalten das Blockieren von Websites wie Google Drive unterstützt und durch geeignete Tests abgedeckt ist.

Vom Indexierungsmodell aus dem Issue-Text verfasst.