Windows build.ps1 script (#130)

* Windows build.ps1 script

Running as-is (`.\build.ps1`) will build with Nuitka, adding -mingw64 (`.\build.ps1 -mingw64`) will build with Nuitka using mingw64 compiler (which it downloads and sets up automatically). Running with -pyinstaller (.\build.ps1 -pyinstaller) will instead use PyInstaller to build.

Feedback is definitely welcome.

* Requested edits to Windows Build.ps1

Use numpy for getting image info in Image node

Use numpy for getting image info in Image node

Update config to avoid conflicts in later versions