New powershell connector (PSv2)

[rhouthuijzen]

tested at custommer environment
Readme is based on the new template
The connector is not based on the new template

[rschouten97]

@rhouthuijzen the code appears to be well-structured. However, since we are focusing on the PS v2 template, please ensure that the code aligns with the template standards.
I recommend waiting at least a week before making any significant changes, as the template is still undergoing revisions following its recent release.
Furthermore, I recommend merging this pull request only once we have actually implemented this connector.

[Rick-Jongbloed]

Please make sure insite can be set and unset at resp enable & disable

The following code should be added

    if ($account.PSObject.Properties.Name -Contains 'InSi') {
        $updateAccountFields += "InSi"
    }

[rhouthuijzen]

Please make sure insite can be set and unset at resp enable & disable

The following code should be added

    if ($account.PSObject.Properties.Name -Contains 'InSi') {
        $updateAccountFields += "InSi"
    }

Before we add this. We should also make the $previousAccount list dynamic. This needs to be tested first.

[JeroenBL]

Based on what I've seen in the changed/added code, everything is OK. So ready to merge.