Revert #200 and new version

[osopardo1]

This PR reverts the changes made on #200 because we move to a different strategy on #207

So history is clean and we upgrade to version 0.4.0 accordingly to the next available release for Apache Spark 3.3.0 and Delta Lake 2.1.0.

[codecov]

Codecov Report

Merging #208 (da42f18) into main (3edd55b) will decrease coverage by 0.17%.
Report is 3 commits behind head on main.
The diff coverage is 83.33%.

❗ Current head da42f18 differs from pull request most recent head 96da313. Consider uploading reports for the commit 96da313 to get more accurate results

@@            Coverage Diff             @@
##             main     #208      +/-   ##
==========================================
- Coverage   93.76%   93.59%   -0.17%     
==========================================
  Files          85       85              
  Lines        2100     2123      +23     
  Branches      173      171       -2     
==========================================
+ Hits         1969     1987      +18     
- Misses        131      136       +5     

Files Changed	Coverage Δ
...o/qbeast/core/transform/LinearTransformation.scala	88.15% <0.00%> (-1.18%)	⬇️
...cala/io/qbeast/core/transform/Transformation.scala	57.14% <0.00%> (-9.53%)	⬇️
...n/scala/io/qbeast/spark/delta/CubeDataLoader.scala	100.00% <ø> (ø)
src/main/scala/io/qbeast/spark/utils/Params.scala	33.33% <33.33%> (-1.97%)	⬇️
...cala/io/qbeast/spark/delta/writer/BlockStats.scala	75.00% <50.00%> (ø)
...ain/scala/io/qbeast/spark/table/IndexedTable.scala	93.57% <50.00%> (-0.77%)	⬇️
...a/io/qbeast/core/transform/LinearTransformer.scala	95.45% <66.66%> (-4.55%)	⬇️
...la/io/qbeast/spark/index/query/QueryExecutor.scala	97.22% <85.71%> (-2.78%)	⬇️
.../main/scala/io/qbeast/core/model/QbeastBlock.scala	100.00% <100.00%> (ø)
...la/io/qbeast/spark/delta/DeltaQbeastSnapshot.scala	93.75% <100.00%> (+2.44%)	⬆️
... and 7 more

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