Add dependency download like ffmpeg and OpenSSL. Fix some animation and code refactoring.

Add

• Add FFMPEG binary download
• Add double click system tray icon
• Add widget fadeout
• Add wallpaper fadeout
• Add windows version detection for wallpaper fadeout
• Add ripple effect when creating wallpapers
• Add VCPKG to CI
• Add ImageSelector placeholder text
• Add readme gif

Change

• Change ScreenPlayWindow to ScreenPlayWallpaper
• Change Qt smartpointer with std smart pointer

Update

• Update to SSL 1.1.1. We need from now on Qt 5.13 because of the upgrade of OpenSSL from 1 to 1.1.1

Fix

• Fix skip conversion on webm
• Fix windows 10 version >= 1903 topmargin. They changed the topmargin to 10% of the monitor height. Dunno why…
• Fix saving project files in utf8
• Fix sidebar toggle
• Fix windows 7 crash
• Fix create footer animation
• Fix namespace issues for qml enums