Usync: Barebones Usync Protocol support (#960)

* feature(feature/usync-mex): initial commit

* chore: fix merge commit

* chore:lint

src/WAUSync/USyncUser.ts

@@ -0,0 +1,27 @@
+export class USyncUser {
+	id: string
+	lid: string
+	phone: string
+	type: string
+
+	withId(id: string) {
+		this.id = id
+		return this
+	}
+
+	withLid(lid: string) {
+		this.lid = lid
+		return this
+	}
+
+	withPhone(phone: string) {
+		this.phone = phone
+		return this
+	}
+
+	withType(type: string) {
+		this.type = type
+		return this
+	}
+
+}