docker: add basic dockerfile

Dockerfile

@@ -0,0 +1,16 @@
+FROM ubuntu:16.04
+
+# Change APT Source for Chinese Users
+RUN sed -i 's/archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list \
+    && sed -i 's/security.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
+
+# Download basic build tools
+RUN apt-get update \
+    && apt-get install --yes --no-install-recommends wget unzip build-essential \
+    git bc swig libncurses5-dev libpython3-dev libssl-dev pkg-config zlib1g-dev \
+    libusb-dev libusb-1.0-0-dev python3-pip gawk \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /YuzukiSBC/Buildroot
+
+COPY buildroot ./buildroot