Add installation and packaging targets

[ozsoyisik]

Gitlab Username: oezsoyik

Commands:

# Build the container
docker build -t cpack-exercise .

# Run the container
docker run -it --mount type=bind,source="$(pwd)",target=/mnt/cpack-exercise cpack-exercise

cd /mnt/cpack-exercise && mkdir build && cd build

cmake .. && make package

apt install -y ./*.deb
cpackexample

lintian *.deb

Solved Lintian Errors/Warnings:

• description-synopsis-starts-with-article : I fixed it by removing "a" at the beginning
• I got no-manual-page while trying to fix it, I got further errors: uncompressed-manual-page, wrong-compression-in-manual-page and broken-gz I was able to fix all of them by adding a manual page and then compressing it properly
• no-phrase for Maintainer: I have added maintainer
• extended-description: I have extended the description

At the end I only had 2 more errors: