Library for reading environment variable files

NOTE! I'm too lazy to write how to install 
the library :) so you'll figure it out yourself, 
you're not dumb, right?

There's only one function you can use ->

    int loadenv(const char* dotenv_file_path, int overwrite_if_exists)

Also, keep in mind that everything is written 
in a very compact way, and there are bugs, which 
I'll probably fix someday if I'm not too lazy. Maybe. 
But anyway, it works with pointers, there are no 
memory leaks, everything seems fine and somewhat 
optimized. For testing, you can run the following 
command if you're using Linux ->

    source libdotenv_build.sh -c

This will run the check and build the example 
located in the `example/` folder. The argument can 
be either `-c` or `--check`, but you'll figure 
it out.

In general, the project is extremely small. I just 
put it together in an evening when I was bored. 
So, that's how it turned out.