#3230 - Support parsing KET file for macromolecules on ketcher side

- added ket macromolecules deserializer for monomers and bonds
- changed entities coordinate system to angstrems

ketcher-autotests/tests/Macromolecule-editor/Ket/ket-deserialize.spec.ts

@@ -0,0 +1,18 @@
+import { test } from '@playwright/test';
+import { openFileAndAddToCanvas, takeEditorScreenshot } from '@utils';
+import { turnOnMacromoleculesEditor } from '@utils/macromolecules';
+
+test.describe('Ket Deserialize', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.goto('');
+    await turnOnMacromoleculesEditor(page);
+  });
+  test('Open ket file with monomers and bonds', async ({ page }) => {
+    /* 
+    Test case: #3230 - Support parsing KET file for macromolecules on ketcher side
+    Description: Ket Deserialize
+    */
+    await openFileAndAddToCanvas('KET/monomers-with-bonds.ket', page);
+    await takeEditorScreenshot(page);
+  });
+});