Binary logger should respect verbosity

[KirillOsenkov]

Currently the Binary Logger forces verbosity to diagnostic:
https://github.com/microsoft/msbuild/blob/bd233ed5dd20725c79b16d907634874237267d77/src/MSBuild/XMake.cs#L3043

This has side effects, such as forcing Log Task Inputs and DetailedSummary. We should probably respect the ambient verbosity if specified explicitly. Still default to diagnostic if /bl is specified and the verbosity isn't specified.

[rainersigwald]

Reopening because we're reverting #8805 to fix #8845.