pwn题部署模板

编写了常用的11种pwn题部署模板文件，支持sha256 proof of work验证，支持从环境变量中设置flag。 详情可参考每个模板下的readme.md文件。

注意事项

如果是ubuntu:18.04以及以下版本，使用chroot构造沙箱环境的时候，dockerfile对应语句需要更新为：

FROM ubuntu:18.04
# ......
RUN cp -R /usr/lib* /home/ctf && \
    cp -R /lib* /home/ctf && \
	mkdir /home/ctf/dev && \
    mknod /home/ctf/dev/null c 1 3 && \
    mknod /home/ctf/dev/zero c 1 5 && \
    mknod /home/ctf/dev/random c 1 8 && \
    mknod /home/ctf/dev/urandom c 1 9 && \
    chmod 666 /home/ctf/dev/*

如果是ubuntu:16.04，前面的语句需要更新为：

FROM ubuntu:16.04 as runner
# ......
RUN apt clean && apt autoclean && apt update && apt install -y xinetd && \
	useradd ctf -u 1000 -s /bin/sh

如果是ubuntu:23.04及更高版本，需要将用户的uid修改为1001：

FROM ubuntu:23.04 as runner

RUN apt update && apt install -y xinetd

RUN	useradd ctf -u 1001 -s /bin/sh

deploy_pwn_template

Templates for deploying pwn challenge in ctf.

There're four general templates for deploying pwn challenge, sha256 proof of work is supported, and setting flag from env is supported.

please read readme.md in each template to get more infomation.