FEAT: added more extensions for snapshot(jpg, bmp, webp)

[GorobVictor]

Added more extensions for snapshot(jpg, bmp, webp).
Added exception when lib doesn't support extension.

[GorobVictor]

@rosenbjerg, Can you check this PR?

It would be great to have a couple of image extensions in the snapshot function.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 82.97872% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.75%. Comparing base (1c4333e) to head (bfefa95).
⚠️ Report is 21 commits behind head on main.

Files with missing lines	Patch %	Lines
FFMpegCore/FFMpeg/Enums/FileExtension.cs	20.00%	4 Missing ⚠️
FFMpegCore/FFMpeg/Enums/Enums.cs	84.61%	1 Missing and 1 partial ⚠️
FFMpegCore/FFMpeg/FFMpeg.cs	90.90%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #566      +/-   ##
==========================================
+ Coverage   71.20%   71.75%   +0.54%     
==========================================
  Files         117      117              
  Lines        2973     2988      +15     
  Branches      284      282       -2     
==========================================
+ Hits         2117     2144      +27     
+ Misses        751      741      -10     
+ Partials      105      103       -2     

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[rosenbjerg]

Hey @GorobVictor
Got the CI fixed and updated this branch
Looks good, thanks for the contribution

[VictorHorobchuk]

Hello @rosenbjerg
You're welcome!