First part of backend rework

- Added the base data structure for the new database
- Added the new routes for the new database
- Reworked the users endpoints

modules/formatManager.js

@@ -0,0 +1,30 @@
+import dns from 'dns';
+
+export function isEmailDomainValid(email) {
+	const domain = email.split('@')[1];
+	return new Promise((resolve, reject) => {
+		dns.lookup(domain, (err, address) => {
+			if (err) {
+				reject(err);
+			}
+			else {
+				const isIPAddress = /^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/.test(address);
+				resolve(isIPAddress);
+			}
+		});
+	});
+}
+
+export function isValidEmail(email) {
+	const emailRegex = /\S+@\S+\.\S+/;
+	return emailRegex.test(email);
+}
+
+export function isNumber(x) {
+	return /^-?[\d.]+(?:e-?\d+)?$/.test(x);
+}
+
+export function isPhoneNumber(phone) {
+	const phoneRegex = /^\d{10}$/;
+	return phoneRegex.test(phone);
+}