Add installation and packaging targets

[RickySandi]

GitLab Username : sandisro
Added CMake install targets and CPack configuration to generate TGZ and DEB packages.

Changes

• CMakeLists.txt: Added install rules for executable, library, and headers. Included CPack module.

• cmake/CPackConfig.cmake: Created CPack configuration enabling TGZ and DEB generators, enabled SHLIBDEPS for dependency resolution, and STRIP_FILES to fix Lintian warnings.

Testing

Build the Docker image:

docker build -t cpack-img .

Run container:

docker run --rm -it -v $(pwd):/mnt/cpack-exercise -w /mnt/cpack-exercise cpack-img

Build and Package:

   mkdir build && cd build
   cmake ..
   make package

Verification

• Install:

apt install ./cpack-exercise_0.1.0_amd64.deb

works, and cpackexample runs successfully.

• Lintian: The output below confirms the binary is stripped/

Lintian Report:

E: cpack-exercise: extended-description-is-empty
E: cpack-exercise: malformed-contact Maintainer Ricky
E: cpack-exercise: no-changelog usr/share/doc/cpack-exercise/changelog.gz (native package)
E: cpack-exercise: no-copyright-file
W: cpack-exercise: description-synopsis-starts-with-article
W: cpack-exercise: no-manual-page [usr/bin/cpackexample]
W: cpack-exercise: non-standard-dir-perm 0777 != 0755 [usr/]