Generalize StringDistance to ArrayDistance

[vickumar1981]

Provide a more general interface that works with Array[T] where T is an arbitrary type.

String is the specific case of an Array[Char], and most of the underlying implementations can still work with more generalized vectors.

• The implicits packages and the main classes can still convert to the underlying implementation using .toCharArray

• The implicits packages should also provide conversions from String to Array[Char] and back.

• Can introduce an ArrayDistance class with Java wrapper in util.ArrayDistance to complement the String classes, and extend the implementations to Array[T].

[vickumar1981]

Initial implementation: https://github.com/vickumar1981/stringdistance/pull/44

• Will be included in 1.2.0 release.
• Currently functionality available in 1.2.0-SNAPSHOT.

[vickumar1981]

Included in version 1.2.0