Add option for High resolution poster download

[jraphael11]

Expected Behavior

Poster and Fanart from DMM,R18 are low resolution (average 100Kb-300Kb), Please add option for High resolution image download. I know 3 sites to get high resolution image. They don't have high resolution image for all JAV and many manual works is required. So, I expect automation for download image and ignore if this site has low size image file less than about 500Kb. Below is how to get high resolution image from sites.

1. https://xcity.jp/main/ guide to get high resolution image: [Poster]

   1. Search JAV ID (e.g., STAR836. NOT STAR-836)
   2. Right click on image and click 'Open image in new tab'.
   3. Combine 2 address.
      • https://fs.xcity.jp/imgsrc/image/maker/ + address from image (e.g., /sod/star836/f_1535004985_1.jpg from STAR836: https://faws.xcity.jp/package/medium/image/maker/sod/star836/f_1535004985_1.jpg)
   4. Move to new image address and download image from that address. (e.g., https://fs.xcity.jp/imgsrc/image/maker/sod/star836/f_1535004985_1.jpg) [Fanart]
   5. Search JAV ID (e.g., STAR836. NOT STAR-836)
   6. Click poster image and then fanart is displayed in pop-up.
   7. Right click on pop-up image and click 'Open image in new tab'.
   8. Combine 2 address.
      • https://fs.xcity.jp/imgsrc/image/maker/ + address from image
   9. Move to new image address and download image from that address. (e.g., https://fs.xcity.jp/imgsrc/image/maker/sod/star836/b_1535004984_1.jpg)

2. https://www.av-channel.com/ guide to get high resolution image: [Poster] Cutting from Fanart [Fanart]

   1. Search JAV ID (e.g., STAR854 or STAR-854. either way is acceptable)
   2. Click the poster image and then high resolution fanart image is displayed in pop-up.
   3. download image.

3. https://hbox.jp/ guide to get high resolution image: [Poster]

   1. Search JAV ID (e.g., SW-735. NOT SW735)
   2. Click the poster image and then high resolution cover and back-cover are displayed in pop-up.
   3. download image. (left is cover, right is back-cover. Need to download 2 times seperately)

   [Fanart] Combine cover and back-cover

Current Behavior

N/A

Steps to Reproduce (for bugs)

N/A

Your Environment

• Module version used:
• Operating System and PowerShell version: N/A