test: Fix for test scripts that were failing in CI (#968)

* Fix for test scripts that were failing in CI
* Test cases for tools: Length and Angle
* Test cases implemented: Scroll series, Levels, Pan, Reset, Zoom
* Added test cases for tools: Cine, More, Layout, Invert, Rotate, FlipH, FlipV
* Fixes made according to comments on PR review
* Fixes for failing scenarios: Layout and Cine

platform/viewer/cypress/integration/common/OHIFStudyViewer.spec.js

@@ -1,5 +1,4 @@
-/*
-TODO: Temporarily commented out because it is failing on CI due to timing issues
+
 describe('OHIF Study Viewer Page', () => {
   
   before(() => {
@@ -41,10 +40,8 @@ describe('OHIF Study Viewer Page', () => {
       cy.get(measurementsButton).click();
       cy.get(rightPanel).should('be.visible');
       
-      
       cy.get(measurementsButton).click();
       cy.get(rightPanel).should('not.be.enabled');
     });
 
   });
-*/