Re-add desired features from older module versions

Problem/Motivation

The following features were listed on the old module page but are now missing from the 11.x release:

• auto-generated ad blocks supporting a configurable number of ads
• advertisements can have multiple owners
• granular per-advertisement/per-owner permissions system
• activation/expiration scheduling based on time, clicks or views
• an ad_report plug-in for basic graphical reports (depends on the Google Charts API)
• an ad_actions plug-in which can be used to schedule automatic email notifications (depends on the token module)
• an ad_remote plug-in for hosting ads on remote (non-Drupal) websites
• support for any number of configurable ad groups, utilizing Drupal's taxonomy (category) subsystem
• display ads based on node ids (nids), or taxonomy terms (categories)
• file-based caching for improved performance
• support for external caching methods

Steps to reproduce

Proposed resolution

Discuss, which of these are worthy to implement.

Remaining tasks

User interface changes

API changes

Data model changes