feat: add Databricks DB engine spec

[betodealmeida]

SUMMARY

Add a DB engine spec for Databricks. Since it uses pyhive under the hood, it's just a thin wrapper.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Connecting to Databricks:

Exploring the birth_names table, after uploading it to Databricks:

TEST PLAN

Connected and explored data (see screenshots).

ADDITIONAL INFORMATION

• Has associated issue:
• Changes UI
• Requires DB Migration.
• Confirm DB Migration upgrade and downgrade tested.
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #13682 (957a82a) into master (21cc495) will decrease coverage by 6.12%.
The diff coverage is 73.45%.

❗ Current head 957a82a differs from pull request most recent head 77c0555. Consider uploading reports for the commit 77c0555 to get more accurate results

@@            Coverage Diff             @@
##           master   #13682      +/-   ##
==========================================
- Coverage   77.41%   71.29%   -6.13%     
==========================================
  Files         918      839      -79     
  Lines       46673    41812    -4861     
  Branches     5720     4334    -1386     
==========================================
- Hits        36131    29809    -6322     
- Misses      10406    12003    +1597     
+ Partials      136        0     -136     

Flag	Coverage Δ
cypress	56.59% <56.43%> (+<0.01%)	⬆️
hive	80.25% <89.09%> (+<0.01%)	⬆️
javascript	?
mysql	80.56% <89.09%> (+<0.01%)	⬆️
postgres	80.61% <89.09%> (+<0.01%)	⬆️
presto	80.29% <87.27%> (+0.01%)	⬆️
python	81.11% <89.09%> (+0.01%)	⬆️
sqlite	80.23% <89.09%> (+<0.01%)	⬆️

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

Impacted Files	Coverage Δ
superset-frontend/src/SqlLab/actions/sqlLab.js	23.61% <ø> (-39.43%)	⬇️
superset-frontend/src/chart/chartAction.js	70.50% <0.00%> (-7.50%)	⬇️
...et-frontend/src/dashboard/actions/nativeFilters.ts	62.50% <ø> (-1.61%)	⬇️
...tersConfigModal/FiltersConfigForm/ControlItems.tsx	68.75% <0.00%> (-2.09%)	⬇️
...odal/FiltersConfigForm/FilterScope/ScopingTree.tsx	7.14% <0.00%> (-92.86%)	⬇️
...onfigModal/FiltersConfigForm/FiltersConfigForm.tsx	82.14% <0.00%> (-11.28%)	⬇️
...perset-frontend/src/dashboard/containers/Chart.jsx	100.00% <ø> (ø)
...et-frontend/src/dashboard/containers/Dashboard.jsx	100.00% <ø> (ø)
...tend/src/explore/components/DisplayQueryButton.jsx	73.43% <0.00%> (-2.37%)	⬇️
superset/config.py	90.71% <ø> (ø)
... and 529 more

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