Added docker file for bridge and emualator

test/docker/Dockerfile

@@ -0,0 +1,20 @@
+FROM debian:stretch
+
+RUN apt-get update
+
+# install and run bridge
+RUN apt-get install https://wallet.trezor.io/data/bridge/2.0.25/trezor-bridge-2.0.25.pkg
+
+# build amd run emulator
+RUN mkdir /trezor-core
+WORKDIR /trezor-core
+
+RUN git clone https://github.com/trezor/trezor-core
+RUN git submodule update --init --recursive
+
+RUN apt-get install libusb-1.0-0
+RUN pip3 install scons trezor
+RUN make build_unix_noui
+
+ENTRYPOINT ["./docker/emulator/run.sh"]
+EXPOSE 21324/udp 21325