Cleanup examples

[xnuohz]

• Combine 15 examples related to cora into 1 file
• Update related docs, github workflow, readme

[puririshi98]

code changes look good at first review, but for such an extensive change i would ask that you run every one of the deleted examples, and then the new version with its corresponding args for this planetoid example. I would ask that you share those logs and also check yourself to make sure that the new version is as good or better in terms of accuracy, speed, and readability. and if not for any reason try to understand why. This is a very valuable PR but we want to be careful with something like this.

If compute is an issue, i would ask that you write a bash script for me that will automatically run the above experiments and have the logs saved to some shared cloud drive or a github repo so you can do the above mentioned anlaysis after i run the script.

regardless once you have said analysis, i will look through myself as well and make sure our analyses align. then i think this is safe to merge

[puririshi98]

also please update the changelog

[akihironitta]

Looks great so far! ✨

Tbh, I'd vote for having many separate 90~100 lines of code examples to allow users to immediately understand what the script does and easily modify the scirpt that they're interested in (at the cost of maintaining duplicate code in the example directory), but I guess this is just my preference.

Could we also add type annotations?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.43%. Comparing base (c211214) to head (16d1fdc).
⚠️ Report is 94 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #10097      +/-   ##
==========================================
- Coverage   86.11%   85.43%   -0.68%     
==========================================
  Files         496      496              
  Lines       33655    34007     +352     
==========================================
+ Hits        28981    29055      +74     
- Misses       4674     4952     +278     

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[puririshi98]

this LGTM once you address my one comment, but curious what @akihironitta thinks now. from our PoV in the longrun it is good to have unified code snippets for testing and customer use. the new planetoid_train.py offers that while explaining what old examples it combines

[puririshi98]

i see you swapped example -> example1 in severl places, can you explain why?

[puririshi98]

LGTM, just ask that @akihironitta give a final stamp of approval

[puririshi98]

closing based on matthias's decision to not merge