JACOBIN-921/922 implement most of java/util/Set and Collection; fix interface searching in runUtils.go

[texadactyl]

new file:   gfunction/javaUtil/javaUtilCollection.go
new file:   gfunction/javaUtil/javaUtilCollection_test.go
new file:   gfunction/javaUtil/javaUtilSet.go
new file:   gfunction/javaUtil/javaUtilSet_test.go

modified:   gfunction/javaUtil/javaUtilHashMap.go
modified:   gfunction/javaUtil/javaUtilHashSet.go
modified:   gfunction/javaUtil/javaUtilMap.go
modified:   gfunction/javaUtil/javaUtilMap_test.go
modified:   gfunction/gfunction.go

modified:   jvm/runUtils.go

Changes described in YouTrack 921 and 922.

[texadactyl]

Jacotest on 5 O/Ses
Number of discrepancies: 0
Passed-Failed = 287-23 (92.6%)