Orion postgresoracle migration

[melowe]

Add support to handle migration from jdbc datastore.

[codecov-io]

Codecov Report

Merging #1267 (707b18a) into master (916bf0b) will not change coverage.
The diff coverage is n/a.

❗ Current head 707b18a differs from pull request most recent head bb121ad. Consider uploading reports for the commit bb121ad to get more accurate results

@@            Coverage Diff            @@
##             master    #1267   +/-   ##
=========================================
  Coverage     99.52%   99.52%           
  Complexity     3251     3251           
=========================================
  Files           499      499           
  Lines          9811     9811           
  Branches        491      491           
=========================================
  Hits           9764     9764           
  Misses            5        5           
  Partials         42       42           

Flag	Coverage Δ	Complexity Δ
unittests	99.52% <ø> (ø)	3251.00 <ø> (ø)

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