ConvertFrom-Expression: convert function/cmdlet calls as Objects

[iRon7]

An expression as e.g. a Pester script:

Describe 'Description' {
    Context 'Context info' {
        it 'Test' {
            2 | Should -be 3
        }
    }
}

Might be converted to an object like:

@{
    Describe = @{
        Name = 'Description'
        ScriptBlock = @{
            Context ' = @{
                Name = 'Context info'
                ScriptBlock = {
                    it = @{
                        Name = 'Test'
                        ScriptBlock = @{
                            Should = @{
                                ActualValue =2
                                Be = 3
                            }
                        }
                    }
                }
            }
        }
    }
}