Some requests

[rube200]

One of the things I miss in VYaml compared to YamlDotnet is the possibility of choosing the namingcase in the options, i think it would be good to have NamingConvention in YamlSerializerOptions, Also i think you could improve enum parse, on my use cases i usually have them insentive case, but the current implementation doesnt support it. At last i recommend the use of Enum.TryParse.