89-poster-defaults (#96)

* print defaults in printproducts

* Add default to printproduct mutation

* added insertDefaults when changing productgroup

* fixed bug for square in square

* cleanup, and tests for calculations

* small fixes, added return values for update

src/types/printproduct-defaults-types.ts

@@ -0,0 +1,14 @@
+export enum BorderType {
+  NONE = 0,
+  WHITE = 1,
+  BLACK = 2,
+}
+
+export interface PrintProductDefaults {
+  printId: number;
+  widthMm: number;
+  heightMm: number;
+  cropX: number;
+  cropY: number;
+  border: string;
+}