sponsors added

[maharshi-gor]

PR Details:

• PR includes a new section for the sponsors.
• It has a new CSS file for this section and a folder for logos under the _static/images.
• Current addition is Luddy, GSoC, and IU.

Let me know if any other source needs to be added to the sponsors section.

[codecov[bot]]

Codecov Report

Merging #808 (e802bec) into master (8710a65) will increase coverage by 33.91%. The diff coverage is 88.88%.

@@             Coverage Diff             @@
##           master     #808       +/-   ##
===========================================
+ Coverage   50.47%   84.38%   +33.91%     
===========================================
  Files         126       43       -83     
  Lines       28299    10274    -18025     
  Branches     3034     1393     -1641     
===========================================
- Hits        14284     8670     -5614     
+ Misses      13536     1243    -12293     
+ Partials      479      361      -118     

Impacted Files	Coverage Δ
fury/actor.py	86.79% <ø> (+86.79%)	:arrow_up:
fury/actors/odf_slicer.py	76.10% <ø> (+76.10%)	:arrow_up:
fury/actors/peak.py	94.50% <ø> (+94.50%)	:arrow_up:
fury/animation/animation.py	68.78% <ø> (+68.78%)	:arrow_up:
fury/animation/helpers.py	92.00% <ø> (+92.00%)	:arrow_up:
fury/__init__.py	63.63% <88.88%> (+37.92%)	:arrow_up:

... and 120 files with indirect coverage changes

[maharshi-gor]

The changes are included in the new PR https://github.com/fury-gl/fury/pull/812