QuickFix: { "translatorOptions" : "" } throws IllegalArgumentException

[vitorpamplona]

Avoids a CqlTranslatorOptions.Options.valueOf("") when the json representation of the library is:

    "annotation" : [ {
      "type" : "CqlToElmInfo",
      "translatorOptions" : ""
    } ]

Which today creates a

Caused by: java.lang.IllegalArgumentException: No enum constant org.cqframework.cql.cql2elm.CqlTranslatorOptions.Options.
	at java.base/java.lang.Enum.valueOf(Enum.java:240)
	at org.cqframework.cql.cql2elm.CqlTranslatorOptions$Options.valueOf(CqlTranslatorOptions.java:12)
	at org.cqframework.cql.cql2elm.TranslatorOptionsUtil.parseTranslatorOptions(TranslatorOptionsUtil.java:65)
	at org.cqframework.cql.cql2elm.TranslatorOptionsUtil.getTranslatorOptions(TranslatorOptionsUtil.java:34)
	at org.cqframework.cql.cql2elm.LibraryManager.translatorOptionsMatch(LibraryManager.java:352)
	at org.cqframework.cql.cql2elm.LibraryManager.generateCompiledLibraryFromElm(LibraryManager.java:268)
	at org.cqframework.cql.cql2elm.LibraryManager.tryCompiledLibraryElm(LibraryManager.java:251)
	at org.cqframework.cql.cql2elm.LibraryManager.compileLibrary(LibraryManager.java:197)
	at org.cqframework.cql.cql2elm.LibraryManager.resolveLibrary(LibraryManager.java:184)
	at org.opencds.cqf.cql.evaluator.engine.execution.TranslatingLibraryLoader.translate(TranslatingLibraryLoader.java:115)