Setting file keys are not matching cmdlet parameters exactly

Raised due to this comment:

Invoke-ScriptAnalyzer has parameters IncludeRule and ExcludeRule parameters and the equivalent of those in the settings file are IncludeRules and ExcludeRules with an additional s, which makes it inconsistent, confusing and not intuitive to work with. The settings file also needs to support the singular form (since the plural form should not be removed for backcompat reasons)

Environment data

> (Get-Module -ListAvailable PSScriptAnalyzer).Version | ForEach-Object { $_.ToString() }
1.17.1

从 Invoke-ScriptAnalyzer 参数以及 IncludeRule、ExcludeRule、IncludeRules 和 ExcludeRules 的设置文件处理入手。确认现有复数名称是如何解析的，然后让单数形式生效，同时不移除与复数形式的向后兼容性。