Rename Views plugins to "Advanced RSS feed", module to "Advanced Views RSS Feed"

Problem/Motivation

From a UI perspective, for a beginner it's hard to know how to configure this, starting with the plugin names. The current names "RSS Feed - Fields" is not very intuitive, it's not clear that this specific formatter is related to this module when there's an included one in Views/core called "RSS feed".

Proposed resolution

Rename the module name to "Advanced Views RSS Feed" and the Views plugins to "Advanced RSS feed".

Remaining tasks

User interface changes

All references to "RSS Feed - Fields" would be replaced with "Advanced RSS Feed".

API changes

n/a

Data model changes

n/a