Added support for multiple screenshot file formats

[IgorTatarnikov]

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Description

What is this PR

• Bug fix
• Addition of a new feature
• Other

Why is this PR needed?
Currently we only support saving screenshots as .png. vedo seems to support .pdf, .eps, .jpg, and .svg. I don't see why we couldn't as well!

What does this PR do?
Adds a check to make sure the suffix of the file name is supported before passing it back to vedo. If there's no suffix, or it's not supported it just saves it as a .png.

References

Closes #340

How has this PR been tested?

Tested locally

Is this a breaking change?

No

Does this PR require an update to the documentation?

Yes, need to document the supported file formats. There are seems to be some weird behaviour when saving as .eps or .svg where they're written as .eps.gz or .svg.gz and have to be uncompressed first.

Checklist:

• The code has been tested locally
• Tests have been added to cover all new functionality (unit & integration)
• The documentation has been updated to reflect any changes
• The code has been formatted with pre-commit

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.47%. Comparing base (f3103ba) to head (0fdfcce).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #341   +/-   ##
=======================================
  Coverage   86.47%   86.47%           
=======================================
  Files          27       27           
  Lines        1220     1220           
=======================================
  Hits         1055     1055           
  Misses        165      165           

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