make install with packaging

[agladilin]

No description provided.

[satya-das]

Why the 3.28?

[agladilin]

Only because I have cmake 3.28.2.
I may try it on 3.31 later.

[satya-das]

Hi @agladilin, please note that I had to revert this change as it caused clang-diagnostic-error with gcc. See the failure. I reverted the use of policy_max from the cmake_minimum_required and now all checks pass. See the result after the fix.

You can create another PR to add this back and maybe some other changes are required too to avoid the clang-diagnostic-error.

[satya-das]

Thank you for the improvement. I will take a detail look as there are few cmake constructs I am not very familiar with. I will soon do the full review.
If in the meanwhile if you can add review comments for the new changes to explain why they are needed then that will be a great help. @agladilin

[agladilin]

These changes actually generate the installation tree along with cmake files that allow to use the find_package(). My project has been compiled without any additional constructs except for

find_package(cppparser COMPONENTS REQUIRED)
target_link_libraries(<proj> PRIVATE cppast cppparser cppwriter ...)

I don't specify the final location of the installed cppparser in my project.

Tested on Ubuntu 22.04 and Windows with Visual Studio.