Request for ignore migrate attribute for EF

[karlosRivera]

i have only one request that please add one attribute called ignore-migrate which i can decorate my class. so when i will migrate then script will not be generated for those classes having the attribute called ignore-migrate.

Thanks

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Console.WriteLine("Hello World!");

Further technical details

EF Core version: (found in project.json or packages.config)
Database Provider: (e.g. Microsoft.EntityFrameworkCore.SqlServer)
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IDE: (e.g. Visual Studio 2015)

[smitpatel]

Duplicate of #2725