[formatter] Indentation for pipeline chaining with leading pipe operator

[sharpchen]

Summary of the new feature

Add indentation for pipeline with leading pipe operator.

Proposed technical implementation details (optional)

# expected:
Get-ChildItem
  | Where-Object { $_ }
  | ForEach-Object name

# actual:
Get-ChildItem
| Where-Object { $_ }
| ForEach-Object name

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

Bundled with Powershell-Editor-Servcies-4.7.0