Rule Idea: Warn on `[xml](Get-Content <File>)` pattern

Summary of the new feature

Warn on Pattern: [xml](Get-Content <File>)
Suggest Pattern: $a = [xml]::new(); $a.Load(<File>)

This pattern is currently in wide use, but it has some problems and should be discouraged.

1. This pattern, due to using Get-Content, has problems if the (perfectly valid) xml file being parsed is not utf8 encoded. See: https://github.com/PowerShell/PowerShell/issues/14505 & https://stackoverflow.com/questions/65263942/how-to-load-or-read-an-xml-file-using-convertto-xml-and-select-xml/65264118#65264118

2. This pattern is very inefficient. I know that PSSA does not generally worry about this - but since the encoding issue above exists, feels worth it to mention. Testing against a ~1mb file shows [xml](Get-Content <File>) as ~12x slower, and against a 170mb file as 22x slower (loading took 46 seconds!).

What is the latest version of PSScriptAnalyzer at the point of writing
PSSA 1.19.1

Powershell Versions
This currently affects both Windows Powershell 5.1 and Powershell 7.

A issue tem como alvo o PSScriptAnalyzer e o padrão do PowerShell [xml](Get-Content <File>). Comece encontrando as implementações de regras e os testes existentes do analisador para diagnósticos baseados em padrões; considera-se concluído quando o padrão gerar um aviso e a forma sugerida de carregamento de XML for relatada de maneira consistente no Windows PowerShell 5.1 e no PowerShell 7.