Support both behaviors with PowerShell variable

…uments

Refactor adding variables to initial session state so experimental feature variables
can be easily omitted based on whether the experimental feature is enabled

This is because we need to pass the parameter to handle the case in a native app where '-parm:value' is presented.

Fix additional codefactor issues

In this case, we want to be sure that the global variable for the new native argument handler provides the correct message when assigning an invalid value

Add a test to handle embedded single quotes.
Remove duplicate experimental feature.

Added test for empty string command.
Protected the call to the pager behind a Get-ExperimentalFeature call so the old path is taken.
Made the experimental feature a const to follow guidance.

Optimize help function to not invoke Get-ExperimentalFeature.
Add additional test for variation in Windows parameter style.

…Get-ExperimentalFeature

…Binder.cs

Co-authored-by: Ilya <darpa@yandex.ru>

…Binder.cs

Co-authored-by: Ilya <darpa@yandex.ru>