Fix: Move classes imported from breerly/factory-girl

[localheinz]

This PR

• moves classes imported from breerly/factory-girl

Follows #1.

[codecov]

Codecov Report

Merging #17 into master will decrease coverage by 12.37%.
The diff coverage is 52.38%.

@@              Coverage Diff              @@
##             master      #17       +/-   ##
=============================================
- Coverage     74.22%   61.85%   -12.38%     
  Complexity       80       80               
=============================================
  Files             8        8               
  Lines           194      194               
=============================================
- Hits            144      120       -24     
- Misses           50       74       +24

Impacted Files	Coverage Δ	Complexity Δ
src/Definition/Definitions.php	92.85% <ø> (+92.85%)	13 <0> (ø)	⬇️
src/EntityDef.php	0% <0%> (ø)	18 <9> (?)
src/FieldDef.php	0% <0%> (ø)	6 <0> (?)
src/EntityDefinitionUnavailable.php	100% <100%> (ø)	2 <2> (?)
src/FixtureFactory.php	93.82% <93.75%> (ø)	36 <15> (?)
... and 3 more

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