Expose whether pool is suspended in MXBean

[ashok-square]

No description provided.

[codecov]

Codecov Report

Merging #1940 (b2e07b3) into dev (ed2da5f) will decrease coverage by 0.37%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                dev    #1940      +/-   ##
============================================
- Coverage     70.75%   70.37%   -0.38%     
+ Complexity      575      573       -2     
============================================
  Files            26       26              
  Lines          2171     2167       -4     
  Branches        311      311              
============================================
- Hits           1536     1525      -11     
- Misses          484      493       +9     
+ Partials        151      149       -2     

Impacted Files	Coverage Δ
...c/main/java/com/zaxxer/hikari/pool/HikariPool.java	80.51% <100.00%> (-0.63%)	⬇️
...in/java/com/zaxxer/hikari/pool/ProxyStatement.java	46.15% <0.00%> (-3.08%)	⬇️
src/main/java/com/zaxxer/hikari/pool/PoolBase.java	70.43% <0.00%> (-1.73%)	⬇️
...ain/java/com/zaxxer/hikari/util/ConcurrentBag.java	76.59% <0.00%> (+1.06%)	⬆️

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[lfbayer]

@ashok-square sorry to take so long to respond to this pull request.

Can you add a unit test to cover this new method?