nsxiv/.woodpecker/clang-tidy-checks, branch master

Move uncritical files into `etc/` (#350)

2022-08-09T14:21:52Z

This is mainly just to reduce the amount of files in the project root. The criteria of what gets into `etc/` are the following: * The file should not be necessary for building nsxiv. This excludes the `icon/*` stuff since that's needed by `window.c`. * The file shouldn't have any valid reason to stay in the project root. This excludes things like `README.md`, `.gitignore` etc. Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/350 Reviewed-by: explosion-mental

sort and group includes

2022-06-28T19:28:06Z

* includes are sorted alphabetically * their grouping and layout is the following: - nsxiv.h will be the first include - followed by any internal headers (e.g "commands.h" "config.h") - followed by system headers ( etc) - followed by third party headers (X.h libwebp etc) * also add `llvm-include-order` check to clang-tidy so that it can catch unsorted includes during CI.

[ci]: use cppcheck and clang-tidy for static analysis

2022-06-25T06:27:01Z