Add general jdbc exporter for non H2 and sqlite use cases.

[melowe]

No description provided.

[codecov-io]

Codecov Report

Merging #545 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master     #545      +/-   ##
============================================
+ Coverage     99.46%   99.47%   +<.01%     
- Complexity     1475     1479       +4     
============================================
  Files           237      238       +1     
  Lines          4508     4544      +36     
  Branches        225      228       +3     
============================================
+ Hits           4484     4520      +36     
  Misses            2        2              
  Partials         22       22

Impacted Files	Coverage Δ	Complexity Δ
.../com/quorum/tessera/data/migration/ExportType.java	100% <100%> (ø)	1 <0> (-1)	⬇️
...uorum/tessera/data/migration/JdbcDataExporter.java	100% <100%> (ø)	3 <3> (?)
...quorum/tessera/data/migration/CmdLineExecutor.java	100% <100%> (ø)	5 <0> (+2)	⬆️

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