Code Quality : Duplication of FileTagHelper

[QuaintMako]

There is currently two FileTagsHelper coexisting in the code. One in Files.App.Helpers and the other in Files.App.Filesystem.

They share multiple methods with the same signatures, however their implementations are somewhat different.

The two helpers should be merged into only one contained in Files.App.Helpers.

Extra attention must be taken to ensure the merge of the shared methods.

[hez2010]

Noticed and I'm working on it currently.

[QuaintMako]

Perfect, thanks for bringing it up!