ResolutionManagerPlugin 0.1.0

This plugin will create a button (Resolution) in canvas editor (2D main page) which allow you to manage game test resolutions and switch between them very quickly from predefined lists.

Based on Resolution Switcher plugin (https://github.com/vinod8990/godot_plugins/tree/master/Resolution%20Switcher), but this one support godot 3.1.

Features:
– Choose stretch mode and aspect from predefiend list, added tooltip for each one.
– Set base resolution, directly or choosing from a list. (will throw error dialog if any value is zero).
– Contain a lists of resolution to choose from (like iphone, ipad, android, basic, most used).
– If the resolution list is custom, you can define your own resolution. Any custom resolution can be set as a base or test resolution. (will throw error dialog if any value is zero).