[Refactor] Batch(Offline) quickstarts to load all the example tables by default

[xiangfu0]

• Always load all the batch tables by default.
• Refactor offline table loading to QuickStartBase.
• Each Batch quickstart just extend QuickStart class and write its own runSampleQueries method.
• Adding one more query example for MultistageEngineQuickStart table join query.

Screenshot of default view and multi-stage engine quickstart sample:

[codecov-commenter]

Codecov Report

Merging #9206 (b7ae5c3) into master (6ed17d2) will decrease coverage by 45.22%.
The diff coverage is 11.05%.

❗ Current head b7ae5c3 differs from pull request most recent head 3bc91c0. Consider uploading reports for the commit 3bc91c0 to get more accurate results

@@              Coverage Diff              @@
##             master    #9206       +/-   ##
=============================================
- Coverage     70.04%   24.81%   -45.23%     
+ Complexity     5003       53     -4950     
=============================================
  Files          1852     1842       -10     
  Lines         98760    98518      -242     
  Branches      15021    15005       -16     
=============================================
- Hits          69175    24449    -44726     
- Misses        24709    71630    +46921     
+ Partials       4876     2439     -2437     

Flag	Coverage Δ
integration1	?
integration2	24.81% <11.05%> (-0.04%)	⬇️
unittests1	?
unittests2	?

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

Impacted Files	Coverage Δ
...mmon/assignment/InstanceAssignmentConfigUtils.java	12.19% <0.00%> (-3.19%)	⬇️
...he/pinot/common/assignment/InstancePartitions.java	40.00% <0.00%> (-1.18%)	⬇️
...ot/common/function/scalar/ArithmeticFunctions.java	16.66% <0.00%> (-52.90%)	⬇️
...ources/PinotInstanceAssignmentRestletResource.java	0.00% <0.00%> (-73.85%)	⬇️
...ntroller/helix/core/PinotHelixResourceManager.java	31.74% <0.00%> (-36.51%)	⬇️
...ntroller/helix/core/rebalance/TableRebalancer.java	0.00% <0.00%> (-78.31%)	⬇️
...local/indexsegment/mutable/MutableSegmentImpl.java	0.00% <ø> (-54.26%)	⬇️
...t/local/upsert/BaseTableUpsertMetadataManager.java	0.00% <0.00%> (ø)
...t/ConcurrentMapPartitionUpsertMetadataManager.java	0.00% <0.00%> (ø)
...psert/ConcurrentMapTableUpsertMetadataManager.java	0.00% <0.00%> (ø)
... and 1370 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[xiangfu0]

cc: @walterddr