Cleaned up a load of relations and optional stuff

ref #11

src/models/entities/TrackScan.ts

@@ -1,17 +1,15 @@
-import { PrimaryGeneratedColumn, Column, ManyToOne, Entity, ChildEntity } from "typeorm";
 import {
-  IsBoolean,
   IsDateString,
   IsInt,
   IsNotEmpty,
-  IsOptional,
-  IsPositive,
+
+  IsPositive
 } from "class-validator";
-import { Scan } from "./Scan";
-import { Runner } from "./Runner";
-import { Track } from "./Track";
+import { ChildEntity, Column, ManyToOne } from "typeorm";
 import { RunnerCard } from "./RunnerCard";
+import { Scan } from "./Scan";
 import { ScanStation } from "./ScanStation";
+import { Track } from "./Track";
 
 /**
  * Defines the scan interface.