fix(entity-contact): Allowing contacts w/out emails

If the contact has no email it can still be associated to the entity.
Resolves #363

src/models/entity-contact.js

@@ -52,7 +52,7 @@ const entityContact = (sequelize, DataTypes) => {
     // Grant perms on checkins
     const contact = await models.Contact.findById(ec.contactId)
 
-    if (typeof contact.email !== 'undefined' && contact.email.length > 0) {
+    if (contact.email !== undefined) {
       const e = await utils.loadCasbin()
       for (const email of contact.email) {
         const p = [email.address, `/entity/${ec.entityId}`, '(GET)|(POST)']