OpenEXR dependency

[Yannick-ll]

Hi,

Thank you for sharing your astonishing work!
I m struggling with the c_code and OpenEXR dependency.
I'm using ubuntu 20.04.

I installed using the following commands :
sudo apt-get install openexr
sudo apt-get install libopenexr-dev
Installing OpenEXR with apt only give me headers in /usr/include/OpenEXR

When I try to compile the code, I get the following errors :

`CMake Error at CMakeLists.txt:28 (find_package):
By not providing "FindOpenEXR.cmake" in CMAKE_MODULE_PATH this project has
asked CMake to find a package configuration file provided by "OpenEXR", but
CMake did not find one.

Could not find a package configuration file provided by "OpenEXR" with any
of the following names:

OpenEXRConfig.cmake
openexr-config.cmake

Add the installation prefix of "OpenEXR" to CMAKE_PREFIX_PATH or set
"OpenEXR_DIR" to a directory containing one of the above files. If
"OpenEXR" provides a separate development package or SDK, be sure it has
been installed.
`

Can you please help me compiling the c_code ?

King regards,
Yannick