Mutation tests have been added
Add builtin method TryGetValue
Add ArrayUtils.TryGetValueFromDictionary()
Remove validity check
Updating mutation tests according to the Sharad's recommendations
fix condition error
CopyNode and List tests were added
Merge branch 'master' into fix_multioutput_replication
Add test case for TryGetValueFromDictionary()
Use TryGetValueFromDictionary() in multi ouptut node
Rename function name
Remove unnecessary namespace
fixed failing Repeat test
fixed failing custom nodes tests
removed unnecessary code from unit tests
cleanup
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into unit-test-unshittification

Conflicts:
	test/DynamoCoreTests/DSEvaluationTest.cs
Adding Custom Node mutation tests
Updating double/integer mutation test
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into unit-test-unshittification