Update Database.cs
Update Database.cs

Adding RemoveRange() in FakeDbSet class. Issue #86
davidsk/EntityFramework-Reverse-POCO-Code-First-Generator,sjh37/efreversepoco,Drizin/EntityFramework-Reverse-POCO-Code-First-Generator,cux/EntityFramework-Reverse-POCO-Code-First-Generator,bdn-mca/EntityFramework-Reverse-POCO-Code-First-Generator,andygjp/EntityFramework-Reverse-POCO-Code-First-Generator