move installation into install.sh

Dockerfile

@@ -1,8 +1,6 @@
 FROM debian
 
-RUN apt-get update && apt-get install -y build-essential pkg-config bison flex autoconf automake libtool make git python2.7 python-pip sqlite3 cmake git 
 COPY . /workdir
-RUN pip install -r /workdir/requirements.txt
 RUN cd /workdir && ./install.sh docker
 WORKDIR /workdir
 ENTRYPOINT ["./start_openplc.sh"]