[Feature] Support for Cover art

[binarygeek119]

i would like to take a page out of emby

CoverArt 4.0 emby plugin
https://emby.media/community/index.php?/topic/800-coverart-40/

what i like to see is being able to display the Movies (DVD and/or Blurays) covers (front and back) in 184mm x 130mm x14mm (DVD) - 148mm x 128,5mm (Bluray) with a dvd case around it like emby does

exsamples
DVD
http://mediabrowser.tv/community/uploads/inline/3/525405ee5b148_f0789cfc6a1ffa8246b48bc64595dee6.png
Bluray
http://mediabrowser.tv/community/uploads/inline/3/525404df6db2b_3bae52c8c9e53743c0f86a71ae6347d8.png

how i belive it works is a image under a transparent image
dvd_case.png layer over base image (dvd_cover.jpeg)
dvd_cover.jpeg

what i think would be a nice way of doing this is.
each "case" would have a config file to go with it.
dvd_case.png = dvd_case.cfg

example config
coverart_v=1 base_image_x1=0px base_image_x2=695px base_image_y1=0px base_image_y2=491px cover1_image_x1=0px cover1_image_x2=718px cover1_image_y1=0px cover1_image_y2=510px cover1_layer=1 base_image_layer=0
cover#_image would be to do a multi layered cover art.
cover#_layer would be where does it get laid behind or in front 0 is base 1 + is above -1 + would be below
base_image_layer where does it get laid behind or in front of base 1 + is above -1 + would be below

what i think should be a base for a start of covers

DVD Case
Bluray Case
Box Set
CD Case
VHS Blank
Film Strip

how to set this would be in the edit type for the movie

this would also let people make custom frames as well.

i also like this to be added to
scenes
makers
images
galleries
performers
studios
and tags

this would also open up more theming possibilities .
this is just a quick example of what i like to see.
more people may have more input on how to make it even better.
so i like to have it as a open discussion, on what people would like out of it.
i mostly want movies and tags to be themeable

also on a side note
open ps2 loader and its app oplmanager has had ps2 art work that is user submittable for downloadable for the ps2 app.
with this app they have great art for this. and they are also archive as well. i think we should follow with stash db.
what we need is
dvd front cover - it should be mandatory for X dimensions
dvd back cover - it should be mandatory for X dimensions
dvd spine - it should be mandatory for X dimensions (also other wise this art on the side would be lost)
dvd disc - it should be mandatory for X dimensions, rotated, and transparent.

oplmanager
https://oplmanager.com/site/index.php

ART quality guidelines
https://oplmanager.com/site/index.php?docs#item0

example of how its used in open ps2 loader
https://oplmanager.com/site/img/OPLM_V18_04.jpg
https://oplmanager.com/site/img/OPLM_V18_05.jpg

[feederbox826]

resolved by #1227