Add User table

api/src/entities/User.kt

@@ -0,0 +1,15 @@
+package be.vandewalleh.entities
+
+import me.liuwj.ktorm.entity.Entity
+import java.time.LocalDateTime
+
+interface User : Entity<User> {
+    companion object : Entity.Factory<User>()
+
+    val id: Int
+    var username: String
+    var email: String
+    var password: String
+    var createdAt: LocalDateTime
+    var lastLogin: LocalDateTime?
+}