Added ospExamples app from ospRay repository

[vnarwal95]

Adding a New Sample(s)

ospExamples

Description

Apart from tutorials, OSPRay comes with a C++ app called ospExamples which is an elaborate easy-to-use tutorial, with a single interface to try various OSPRay features. It is aimed at providing users with multiple simple scenes composed of basic geometry types, lights, volumes etc. to get started with OSPRay quickly.

ospExamples app runs a GLFWOSPRayWindow instance that manages instances of the camera, framebuffer, renderer and other OSPRay objects necessary to render an interactive scene. The scene is rendered on a GLFW window with an imgui GUI controls panel for the user to manipulate the scene at runtime.

The application is refactored from https://github.com/ospray/ospray/tree/master/apps such that it can be compiled and built upon independently of OSPRay engine.

Checklist

Administrative

• Review sample design with the appropriate Domain Expert:
• If you have any new dependencies/binaries, inform the oneAPI Code Samples Project Manager

Code Development

• Implement coding guidelines and ensure code quality. see wiki for details
• Adhere to readme template
• Enforce format via clang-format config file
• Adhere to sample.json specification. https://github.com/oneapi-src/oneAPI-samples/wiki/sample-json-specification
• Ensure/create CI test configurations for sample (ciTests field) https://github.com/oneapi-src/oneAPI-samples/wiki/sample-json-ci-test-object
• Run jsonlint on sample.json to verify json syntax. www.jsonlint.com

Security and Legal

• OSPDT Approval (see Project Manager for assistance)
• Compile using the following compiler flags and fix any warnings, the falgs are: "/Wall -Wformat-security -Werror=format-security"
• Bandit Scans (Python only)
• Virus scan

Review

• Review DPC++ code with Paul Peterseon. (GitHub User: pmpeter1)
• Review readme with Tom Lenth(@tomlenth) and/or Project Manager
• Tested using Dev Cloud when applicable

[jkinsky]

Please update the format and layout of the readme to match https://github.com/oneapi-src/oneAPI-samples/blob/master/RenderingToolkit/GettingStarted/02_embree_gsg/cpu/README.md.