Add support for `RangeMap` class

[nerdkid93]

Add support for serializing and deserializing Guava's RangeMap class.

e.g.

record Grades(@JsonProperty RangeMap<Integer, String> gradeMap) {
}

ObjectMapper mapper = new ObjectMapper();
RangeMap<Integer, String> map = TreeRangeMap.create();
map.put(Range.closedOpen(0, 60), "F");
map.put(Range.closedOpen(60, 70), "D");
map.put(Range.closedOpen(70, 80), "C");
map.put(Range.closedOpen(80, 90), "B");
map.put(Range.closed(90, 100), "A");
Grades grades = new Grades(map);
String json = mapper.writeValueAsString(grades); // expect RangeMap serialization to equal `asMapOfRanges()` below
Grades newGrades = mapper.readValue(json, Grades.class); // expect this to not throw InvalidDefinitionException
if (!grades.equals(newGrades)) new AssertionError("Deserialized grades should match original");

{
  "grades": {
    "[0..60)": "F",
    "[60..70)": "D",
    "[70..80)": "C",
    "[80..90)": "B",
    "[90..100]": "A"
  }
}

[cowtowncoder]

PRs welcome!