[ImgBot] Optimize images

*Total -- 777.42kb -> 706.07kb (9.18%)

/UML_Picture/singleton.gif -- 2.46kb -> 1.64kb (33.39%)
/UML_Picture/adapter.gif -- 4.68kb -> 3.82kb (18.25%)
/UML_Picture/mediator.gif -- 4.71kb -> 3.86kb (18.12%)
/UML_Picture/builder.gif -- 5.01kb -> 4.15kb (17.05%)
/UML_Picture/facade.gif -- 5.08kb -> 4.22kb (16.81%)
/UML_Picture/iterator.gif -- 6.70kb -> 5.64kb (15.77%)
/UML_Picture/factory.gif -- 5.47kb -> 4.62kb (15.59%)
/UML_Picture/command.gif -- 5.56kb -> 4.70kb (15.36%)
/UML_Picture/memento.gif -- 5.57kb -> 4.72kb (15.31%)
/UML_Picture/interpreter.gif -- 5.69kb -> 4.84kb (15%)
/UML_Picture/strategy.gif -- 5.91kb -> 5.05kb (14.45%)
/Assets/Game Programming Patterns/Object Pool Pattern/Example/objectPoolScreenShot.png -- 131.21kb -> 112.46kb (14.29%)
/UML_Picture/bridge.gif -- 7.70kb -> 6.67kb (13.38%)
/UML_Picture/UML_Description.png -- 137.80kb -> 120.77kb (12.36%)
/UML_Picture/composite.gif -- 8.16kb -> 7.16kb (12.23%)
/UML_Picture/decorator.gif -- 8.56kb -> 7.55kb (11.87%)
/UML_Picture/observer.gif -- 8.80kb -> 7.75kb (11.85%)
/UML_Picture/flyweight.gif -- 10.35kb -> 9.37kb (9.44%)
/Media/repo-cover.jpg -- 322.27kb -> 302.88kb (6.02%)
/UML_Picture/type-object.png -- 50.53kb -> 49.02kb (2.99%)
/UML_Picture/visitor.gif -- 15.59kb -> 15.55kb (0.24%)
/UML_Picture/proxy.gif -- 4.74kb -> 4.73kb (0.1%)
/UML_Picture/template.gif -- 5.50kb -> 5.49kb (0.07%)
/UML_Picture/state.gif -- 4.66kb -> 4.66kb (0.06%)
/UML_Picture/chain.gif -- 4.74kb -> 4.74kb (0.06%)

Signed-off-by: ImgBotApp <ImgBotHelp@gmail.com>

Author: ImgBotApp