Do not transform value using attribute type after apply expression JEXL

[AlvaroVega]

Keep attribute value as expression plugin returns

Do not perform:

iotagent-node-lib/lib/plugins/jexlParser.js

Lines 129 to 147 in 9557e75

	if (attribute.type === 'Number' && isFloat(newAttribute.value)) {
	newAttribute.value = Number.parseFloat(newAttribute.value);
	} else if (attribute.type === 'Number' && !Number.isNaN(Number.parseInt(newAttribute.value))) {
	newAttribute.value = Number.parseInt(newAttribute.value);
	} else if (attribute.type === 'Boolean') {
	newAttribute.value = newAttribute.value === 'true' || newAttribute.value === '1';
	} else if (attribute.type === 'None') {
	newAttribute.value = null;
	} else if (attribute.type === 'Text' || attribute.type === 'String') {
	newAttribute.value = String(newAttribute.value);
	} else if (
	attribute.type.toLowerCase().includes('structuredvalue') ||
	attribute.type.toLowerCase().startsWith('geo') ||
	attribute.type.toLowerCase().includes('json')
	) {
	newAttribute.value = newAttribute.value;
	} else {
	newAttribute.value = String(newAttribute.value);
	}

Introduced by #800

[fgalan]

Fixed in PR #1034