Add .gitignore

[AlbertoMarnetto]

Ignore the files in the build directory, since this will be dirtied by the build instructions in the README

[LowLevelMahn]

you should build out-of-repo-tree

mkdir stressed_dev
cd stressed_dev
git clone https://github.com/dstien/stressed.git
mkdir build
cd build
cmake ../stressed
make
Run ../stressed/src/app/stressed

[AlbertoMarnetto]

I think, building in a in-tree build directory is such a common idiom that it should be supported. All the C++ projects I have worked on, professionally and personally, were built this way. But I'll let @dstien decide.

[LowLevelMahn]

I think, building in a in-tree build directory is such a common idiom that it should be supported. All the C++ projects I have worked on, professionally and personally, were built this way. But I'll let @dstien decide.

there is no must in any way
but i don't understand why so many devs like (and tell other devs) to pollute their repo dirs with intermediate or build files at all :)