public void MetaList_Ok()
{
using var area = new TestArea("metaListOkTest");
DroneDB.Init(area.TestFolder);
DroneDB.MetaAdd(area.TestFolder, "annotations", "123");
DroneDB.MetaAdd(area.TestFolder, "examples", "abc");
DroneDB.MetaList(area.TestFolder).Should().HaveCount(2);
}