Sync with SeasideSt/Grease master repo

[jbrichau]

See for changes in 1.16.0: https://github.com/SeasideSt/Grease/releases/tag/v1.16.0

For GemStone, we added the implementation that support temporary file creation to be able to also port the streaming file uploads in Seaside to GemStone

All other changes are about the Smile code style rules which only work in Pharo.

[codecov-commenter]

Codecov Report

Attention: 124 lines in your changes are missing coverage. Please review.

Comparison is base (b0307c4) 84.75% compared to head (ee685e4) 85.15%.
Report is 6 commits behind head on master.

Files	Patch %	Lines
...RTestAssertionsRule.class/instance/checkMethod..st	0.00%	7 Missing ⚠️
....package/GRReSlimeTest.class/instance/canParse..st	0.00%	7 Missing ⚠️
...package/GRAnsiBooleansRule.class/instance/group.st	0.00%	4 Missing ⚠️
...ckage/GRAnsiCharactersRule.class/instance/group.st	0.00%	4 Missing ⚠️
...kage/GRAnsiCollectionsRule.class/instance/group.st	0.00%	4 Missing ⚠️
...age/GRAnsiConditionalsRule.class/instance/group.st	0.00%	4 Missing ⚠️
...ackage/GRAnsiConvertorRule.class/instance/group.st	0.00%	4 Missing ⚠️
...ckage/GRAnsiExceptionsRule.class/instance/group.st	0.00%	4 Missing ⚠️
....package/GRAnsiStreamsRule.class/instance/group.st	0.00%	4 Missing ⚠️
....package/GRAnsiStringsRule.class/instance/group.st	0.00%	4 Missing ⚠️
... and 21 more

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Additional details and impacted files

@@            Coverage Diff             @@
##           master      #30      +/-   ##
==========================================
+ Coverage   84.75%   85.15%   +0.39%     
==========================================
  Files        1923     2051     +128     
  Lines       13092    14115    +1023     
==========================================
+ Hits        11096    12019     +923     
- Misses       1996     2096     +100     

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