Expanding specification of a user supplied exception override class

[cardid-zz]

For those cases when HikariCP cannot establish connection for some reasons, like changed password, may need to shutdown entire HikariCP Datasource.
I expanded previously added SQLExceptionOverride class by adding method onException which passing instance of HikariDatasource and exception to application.

[codecov]

Codecov Report

Merging #1551 (91d998e) into dev (ed2da5f) will decrease coverage by 0.08%.
The diff coverage is 83.33%.

@@             Coverage Diff              @@
##                dev    #1551      +/-   ##
============================================
- Coverage     70.75%   70.66%   -0.09%     
- Complexity      575      578       +3     
============================================
  Files            26       26              
  Lines          2171     2182      +11     
  Branches        311      312       +1     
============================================
+ Hits           1536     1542       +6     
- Misses          484      486       +2     
- Partials        151      154       +3     

Impacted Files	Coverage Δ
.../main/java/com/zaxxer/hikari/HikariDataSource.java	78.57% <ø> (ø)
...n/java/com/zaxxer/hikari/SQLExceptionOverride.java	60.00% <0.00%> (-15.00%)	⬇️
...c/main/java/com/zaxxer/hikari/pool/HikariPool.java	80.99% <66.66%> (-0.14%)	⬇️
src/main/java/com/zaxxer/hikari/HikariConfig.java	77.71% <100.00%> (+0.18%)	⬆️
src/main/java/com/zaxxer/hikari/pool/PoolBase.java	72.56% <100.00%> (+0.40%)	⬆️
...ain/java/com/zaxxer/hikari/util/ConcurrentBag.java	73.40% <0.00%> (-2.13%)	⬇️
...n/java/com/zaxxer/hikari/pool/ProxyConnection.java	77.84% <0.00%> (-0.64%)	⬇️

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