Request #67101: SolrDisMaxQuery Trigram Methods

proto SolrDisMaxQuery SolrDisMaxQuery::addTrigramPhraseField(string field, float boost [, float slop])
proto SolrDisMaxQuery SolrDisMaxQuery::removeQueryField(string field)
proto SolrDisMaxQuery SolrDisMaxQuery::setTrigramPhraseFields(string trigramFields)