ArgumentPropertiesHelper and ValidationHelper can easily be static, but aren't

[akamsteeg]

AtleX.CommandLineArguments/src/AtleX.CommandLineArguments/Parsers/Helpers/ArgumentPropertiesHelper.cs

Line 11 in e10246d

internal sealed class ArgumentPropertiesHelper

AtleX.CommandLineArguments/src/AtleX.CommandLineArguments/Parsers/Helpers/ValidationHelper.cs

Line 12 in e10246d

internal sealed class ValidationHelper

The ArgumentPropertiesHelper and ValidationHelper can easily be static, but they aren't. Making them static reduces GC load and calling static methods is cheaper, so we should make them static.

Because these classes are internal, it doesn't change the external API so no major or minor release is needed for this.