Add simple configuration for broad targets with compatibility rules

Currently, the PSSA compatibility rules can only specify targets by name or path.

Compatibility target names are long, unintelligible and cumbersome.

Instead, users need to be able to do things like specify a list of PowerShell versions to target or a list of operating systems.

There needs to be a systematic, composable, human-readable way to specify these settings all the way from "everything" to "PowerShell 6.1 on Linux AND PowerShell 5.1 on Windows only".

While this resembles .NET RIDs, those form a simple lattice where the whole RID refers only to a granularity of operating system. A PowerShell platform can differ in operating system, PowerShell version, .NET version, .NET edition, machine architecture and process architecture (in decreasing order of importance).

該 issue 未指定任何檔案或測試；首先定位針對按名稱或路徑指定之目標的 PSSA 相容性規則處理邏輯。定義 PowerShell 版本、作業系統和其他平台維度應如何組合，然後驗證所提出的設定是否能表達所述的廣泛相容性目標和具體相容性目標。