Add PicView to package managers

[Ruben2776]

Planning to add PicView to:

• Chocolatey
• Winget
• Scoop

[tesar-tech]

Yes please!

[Ruben2776]

I've created a new directory called scripts to contain setup scripts to make it work for package managers.
However it's a real headache reading through tons of documentation, trying to make something work I've had no prior experience with.
So it would be appreciated if anyone would be willing to lend a hand. Pull requests are accepted.

[Ruben2776]

Alright, Chocolatey should probably work now with
choco install picview --version=1.5.6 -y

Now gotta figure out how to make portable version work.

[tesar-tech]

Thank you. Now picview is my default image app.