New powershell connector (PSv2)

[rhouthuijzen]

fieldMapping added.
tested at custommer
Readme and Scripts are 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]

Its a large update so it's hard to really check line by line, but since it's already tested and it looks good, i'll approve this pr