* Add a <cmath> as to fix unknown symbol sqrt whist building on linux (gcc). Remove <algorithm> as a consequence of clangd suggestion.
* adjust according to the review comment
- Adds the file TracyOpenCL.hpp which contains the API to annotate OpenCL applications
- It works in a similar fashion to the Vulkan annotations
- Adds an example OpenCL application in examples/OpenCLVectorAdd
- Adds "OpenCL Context" to the UI
- Manual entry for annotating OpenCL zones