Fix cross matching on an aggregate or entity property

[Baptouuuu]

Problem

#37 introduced cross aggregate matching. However the PR only tested against an optional entity.

When applying this feature on an aggregate or entity property then it throws a LogicException with the SQL adapter saying the specification CrossMatch is not supported.

Solution

Add missing specification translations in the SQL adapter to allow to apply it in these cases.

[codecov]

Codecov Report

Attention: Patch coverage is 42.85714% with 8 lines in your changes missing coverage. Please review.

Project coverage is 97.21%. Comparing base (bade44f) to head (cdaebd6).

Files with missing lines	Patch %	Lines
src/Adapter/SQL/MainTable.php	42.85%	8 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop      #41      +/-   ##
=============================================
- Coverage      97.37%   97.21%   -0.16%     
- Complexity       635      637       +2     
=============================================
  Files             96       96              
  Lines           4337     4351      +14     
=============================================
+ Hits            4223     4230       +7     
- Misses           114      121       +7     

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