jsonata expression evaluation is async, so needs to be awaited (#11)

* jsonata expression evaluation is async, so needs to be awaited

https://github.com/jsonata-js/jsonata/blob/master/CHANGELOG.md#200-major-release

* Another await

---------

Co-authored-by: Alexandre Alapetite <alexandre.alapetite@alexandra.dk>

Author: jamiepenney

json-multi-schema-resolver.js

@@ -28,7 +28,7 @@ module.exports = RED => {
 			for (const mapping of mappings) {
 				if (mapping.query && mapping.cases) {
 					const expression = jsonata(mapping.query);
-					let match = expression.evaluate(payload);
+					let match = await expression.evaluate(payload);
 					if (match) {
 						if (match === true) {
 							// Special case for boolean

json-multi-schema-transformer.js

@@ -54,7 +54,7 @@ module.exports = RED => {
 
 			if (jsonataExpression) {
 				// Perform transformation
-				return jsonataExpression.evaluate(payload);
+				return await jsonataExpression.evaluate(payload);
 			}
 
 			return false;