message: Added TabularColumn.FullName as FQN
  Required for ManageDates/ScanConfig.OnlyTablesColumns
diff: [DebuggerDisplay("'{TableName}'[{Name}]")]
  public class TabularColumn
  {
  -
  - [JsonPropertyName("name")]
  - public string? TableColumnName { get; set; }
  -
  - [JsonPropertyName("columnName")]
  + [JsonPropertyName("columnName")] // TODO: @daniele - would it be better to rename "columnName" to "name" ?
  public string? Name { get; set; }
  + [JsonPropertyName("fullName")]
  + public string? FullName => $"'{ TableName }'[{ Name }]";
  +
  [JsonPropertyName("tableName")]
  public string? TableName { get; set; }
  