enable assemblyinfo.cs update when not (CI)

fix if matching

disable assemblyinfo.cs update temporarily

check variables

Do not attempt to verify the fingerprint since it changes often. It seems to be overkill to check it.

bulk of the changes for appveyor automation

Further work to test appveyor builds

add vs2022 cert thunbprint
fix function which tests if a file is executable

commit 84b28316d01d158891d909e90fe428e48d5566e3
Author: Faryan Rezagholi <faryan.rezagholi@siedle.de>
Date:   Sun Aug 29 13:08:31 2021 +0200

    r

commit 7375b4a5456a615b36c4fbf0eda7a8d56762de85
Author: Faryan Rezagholi <faryan.rezagholi@siedle.de>
Date:   Sun Aug 29 12:54:40 2021 +0200

    ...

commit 96aa9d809131c8277bd62cb90fdfa4fd07f1940e
Author: Faryan Rezagholi <faryan.rezagholi@siedle.de>
Date:   Fri Aug 20 15:12:03 2021 +0200

    j