[Feature Request] Rename based on context vars

[therobbiedavis]

Is your feature request related to a problem? Please describe.
I would like the ability to rename files to a certain format based on a series of contextual variables defined by the metadata of each file.

Describe the solution you'd like
In Mylar it's possible to rename based on the following:

I suggest allowing a preference option for users to define a rename template. Settings > Rename Template

You could allow for the following context vars:

• {Series}
• {Volume}
• {Issue}/{Chapter}
• {Year}
• {Month}
• {Day}
• {Count}
• {Publisher}

I think that should allow for any mix that is commonly used in a filename.

Describe alternatives you've considered
The only alternatives to that I'm aware of are using Mylar on post-process or Import, Older versions of Comictagger (it's broken on newer), or Comicrack's default which is not configurable.