Widgets reorder

[PrimozGodec]

Issue

Widgets in the addon were sorted randomly.

Description of changes

Widgets reordered to have the following order:

Includes

• [X] Code changes
• [ ] Tests
• [ ] Documentation

[codecov-io]

Codecov Report

Merging #64 into master will increase coverage by 0.03%. The diff coverage is 71.42%.

@@            Coverage Diff             @@
##           master      #64      +/-   ##
==========================================
+ Coverage   79.21%   79.25%   +0.03%     
==========================================
  Files          17       17              
  Lines        2271     2275       +4     
  Branches      278      278              
==========================================
+ Hits         1799     1803       +4     
  Misses        441      441              
  Partials       31       31

Impacted Files	Coverage Δ
orangecontrib/educational/widgets/owpiecharts.py	0% <0%> (ø)	:arrow_up:
...rangecontrib/educational/widgets/owgooglesheets.py	0% <0%> (ø)	:arrow_up:
...trib/educational/widgets/owpolynomialregression.py	96.58% <100%> (+0.01%)	:arrow_up:
orangecontrib/educational/widgets/ow1ka.py	44.64% <100%> (ø)	:arrow_up:
.../educational/widgets/owpolynomialclassification.py	98.33% <100%> (ø)	:arrow_up:
orangecontrib/educational/widgets/owkmeans.py	94.68% <100%> (+0.01%)	:arrow_up:
...gecontrib/educational/widgets/owgradientdescent.py	97.03% <100%> (ø)	:arrow_up:

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[PrimozGodec]

@BlazZupan, @janezd do you agree with new widget order?

[ajdapretnar]

I don't know. Usually we have data-loading widgets at the beginning. This is why I put Google Spreadsheets and Enklik Anketa at the beginning.

[PrimozGodec]

@ajdapretnar that makes sense. I proposed new order.