FlatTableProjection: honor enum storage + value types + nullable (#4290, #4291)#4292

jeremydmiller merged 1 commit intomasterJasperFx/marten:masterfrom

fix-4290-4291-flat-table-enum-nullableJasperFx/marten:fix-4290-4291-flat-table-enum-nullableCopy head branch name to clipboard