Make custom rule name consistent

Apologies if I am repeating something or if this has been discussed already. This is mostly an re-iteration of https://github.com/PowerShell/PSScriptAnalyzer/issues/1140#issuecomment-488251888

As of now, custom rule names are inconsistent across various places.

• At first, there are no indication about function name in the ScriptRuleDocumention.md . But PSSA is completely depends on $MyInvocation.InvocationName for rule/violation name
• I can not really have a customized rule name, it should be the name of the PS function. That gives me a weird naming of rules like Measure-Something. On the other I can ship the violation with whatever name I like which has no value and can break things.
• While suppressing a custom rule, I will have to provide <ModuleName>\<RuleName>. That would end up something like, FooBar\Measure-Something
  • I really do not like this convention as I do not want the developer to be aware of the module name or the function name.
• It gets worst further, While filtering a rule, I can not follow the same convention, it has to be the name whatever the function name.

Invoke-ScriptAnalyzer -IncludeRule Measure-Something -ExcludeRule Measure-SomethingElse

从 ScriptRuleDocumentation.md 以及此处描述的 Invoke-ScriptAnalyzer IncludeRule/ExcludeRule 和 suppression 行为开始；查看所链接 issue 的讨论，以了解之前的背景。自定义规则的命名约定确定下来，并在文档、违规名称、suppression 和筛选中保持一致地应用后，即视为完成。