Re-organize examples

[Aryex]

Summary

This PR reorganized our example folder with the goal of making it quicker for integrators to get started on our connector.

Description

• Consolidated into one scala project
• Cleanup of the pyspark run script.
• Fixed an issue with pyspark using the wrong hdfs address
• updated R run script to be compatible with the new bitnami image
• removed run. r as it was hanging at the end because it could not check/write the file.

Related Issue

Close #446

Additional Reviewers

@alexey-temnikov @alexr-bq @jeremyp-bq @jonathanl-bq

[codecov[bot]]

Codecov Report

Merging #474 (ef1ebd5) into main (02e1e81) will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #474   +/-   ##
=======================================
  Coverage   87.27%   87.27%           
=======================================
  Files          43       43           
  Lines        1965     1965           
  Branches      118      118           
=======================================
  Hits         1715     1715           
  Misses        250      250           

Flag	Coverage Δ
unittests	87.27% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

:mega: Codecov can now indicate which changes are the most critical in Pull Requests. Learn more