Builds the operations that will migrate the database 'up'.
That is, builds the operations that will take the database from the state left in by the previous migration so that it is up-to-date with regard to this migration.
This method must be overridden in each class the inherits from Migration.
Assembly: MannsBlog.Data (in MannsBlog.Data.exe)
protected void Up( migrationBuilder )
The MigrationBuilder that will build the operations.