Improving BSD support - NetBSD

[euant]

In case anybody else wishes to run the tests on NetBSD, there are a few steps 
to go through (these steps assume you are logged in as root):
    
    
    pkgin install git \
        sqlite3 \
        sfml \
        mozilla-rootcerts \
        boehm-gc \
        gmake \
        nodejs \
        pcre \
        SDL2
    mozilla-rootcerts install
    mkdir -p $HOME/src
    cd $HOME/src
    git clone https://github.com/nim-lang/Nim.git Nim
    cd Nim
    git clone --depth 1 -q https://github.com/nim-lang/csources.git
    gmake -C csources -j $(sysctl -n hw.ncpuonline)
    bin/nim c koch
    export PATH="$HOME/src/Nim/bin:$PATH"
    if ! ./koch runCI; then
      nim c -r tools/ci_testresults.nim
      exit 1
    fi
    
    
    Run