v1.0.7

fix Cannot find csrf
adapt new codeforces input format
add support for C++17 64 bit and C++20
refine: do nothing when cf race xxx if *.cpp already exists
abbreviation: cf t means cf test and cf s means cf submit
auto gen README.md per contest

cf_v1.0.7_darwin_64.zip is built by Mac x64, and can be used for Mac arm64