[#2709] fix(spark): Fix serialization error in Spark History UI

[wForget]

What changes were proposed in this pull request?

• Add cleaner ShuffleReadTimesSummary/ShuffleWriteTimesSummary entities
• Make ShuffleType as an enumeration

Why are the changes needed?

for #2709

Fix serialization error when enabled spark.history.store.hybridStore.enabled

Does this PR introduce any user-facing change?

No.

How was this patch tested?

Successfully tested in internal spark history server environment.

[wForget]

@zuston Could you please take a look?

[github-actions]

Test Results

 3 175 files  ±0   3 175 suites  ±0   6h 51m 54s ⏱️ +59s
 1 238 tests ±0   1 237 ✅ ±0   1 💤 ±0  0 ❌ ±0 
15 689 runs  ±0  15 674 ✅ ±0  15 💤 ±0  0 ❌ ±0 

Results for commit 483139c. ± Comparison against base commit 1365115.

[zuston]

lgtm. thanks for fixing this @wForget

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 51.59%. Comparing base (8ad0f8d) to head (52f2738).
⚠️ Report is 166 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2710      +/-   ##
============================================
+ Coverage     51.34%   51.59%   +0.24%     
+ Complexity     3615     3135     -480     
============================================
  Files           571      506      -65     
  Lines         32892    23998    -8894     
  Branches       2833     2183     -650     
============================================
- Hits          16890    12381    -4509     
+ Misses        14932    10840    -4092     
+ Partials       1070      777     -293     

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