Enhancement: Server-Side Tagging with MTM

[atom-box]

In July, one user asked if they could,
"use Matomo Tag Manager for the implementation of Tags in server side."

In May, one user asked does Matomo have,
"Server-Side Tag Manager (similar to GTM Server Side, but obviously, sticking with Matomo, and staying away from all ____ products; so anything else outside of ____ cloud too). This is for analytics, but not for tag management. Do you have anything for server side tag management please? "

In March one user asked,
"This maybe a really stupid question, but does Matomo support Google GTM Server-side Tagging?"

[atom-box]

In June a user asked:

"Most of the infrastructures I maintain are currently shifting towards server side tag management (to mitigate effects of GDPR, iOS script blocking). I am currently unaware of the Matomo efforts in this field."

[AltamashShaikh]

@atom-box I have added for prioritisation and the product team will take a call on this.

[mattab]

Thanks @atom-box for creatng this issue 💪

I've copied your valuable comments into the other issue and marking this as duplicate #305