ESQL: Pushdown Like query where possible

[costin]

Description

Similar to RLike or StartsWith, Like query can be pushed down to Lucene using a WildcardQuery, which we're already doing for SQL.

[elasticsearchmachine]

Pinging @elastic/es-analytical-engine (Team:Analytics)

[ivancea]

We're pushing it down, the implementation within the function is here:

elasticsearch/x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/scalar/string/WildcardLike.java

Lines 127 to 137 in f61f139

	@Override
	public boolean translatable(LucenePushdownPredicates pushdownPredicates) {
	return pushdownPredicates.isPushableAttribute(field());
	}
	@Override
	public Query asQuery(TranslatorHandler handler) {
	var field = field();
	LucenePushdownPredicates.checkIsPushableAttribute(field);
	return translateField(handler.nameOf(field instanceof FieldAttribute fa ? fa.exactAttribute() : field));
	}

It was implemented here: #120192 (In 8.18.0 and 9.0.0)