Union support draft
Added in-memory cache
Little bit of refactoring
Improved methods order and done micro improvements
Added  option to LeanMapper\Row
Added posibility to specify SQL strategy in relationship annotation
Small improvements
Extended filter flag in annotation
Improved naming
Merge branch 'annotationsImprovement' into sqlStrategy
Merge branch 'aliasesParserImprovement' into sqlStrategy
Merge branch 'sqlStrategy' into develop
LeanMapper\Result: removed impractical obstruction in setDataEntry