added / improved tests for set inside dg:assign tag. Part of #159

Signed-off-by: yukaReal <yuriy.yankop@gmail.com>
code cleanup

Signed-off-by: Nilkamal Weerasinghe <wnilkamal@yahoo.com>
additional unit tests for the EquivalenceClassTransformer at a method/functional/unit level AND replcement of the SSN EQclass function with a robust version of it

Signed-off-by: Nilkamal Weerasinghe <wnilkamal@yahoo.com>
implented dg:assign range and file feature. #159. With unit tests.

Signed-off-by: yukaReal <yuriy.yankop@gmail.com>
Merge branch 'master' of https://github.com/wnilkamal/DataGenerator into wnilkamal-master

Signed-off-by: yukaReal <yuriy.yankop@gmail.com>

Conflicts:
	dg-core/src/test/java/org/finra/datagenerator/engine/scxml/SCXMLEngineTest.java
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'

Signed-off-by: yukaReal <yuriy.yankop@gmail.com>
Merge pull request #163 from yukaReal/master

Added / improved tests for set inside dg:assign tag. Part of #159.