* run clang-tidy with readability-braces-around-statements
clang-format the results
clean up all the parts that clang-tidy-8 broke
* fix problem on windows
* Adds FreeSASA adapter
* Uses windows branch when necessary
* Oops inverted windows and unix builds
* Fixes windows source build
* Adds downloading message
* Updates FreeSASA to final API
* Adds python API
* Finished queryatom API
* Changes d_alg to algorithm (and d_classifier) exposes to python adds docs/tests
* Adds FATAL_ERROR to MSVC builds, removes from appveyor