Fixing docker build (adobe#87)

- Speedup and simplify docker build
- Fix compiler errors when building with clang-15
- Update readme on building with docker
- Minor reformatting (using existing `.clang-format` file)

Yet another build break

Adding all `hyde` values under a top-level `hyde` YAML key (adobe#80)

* adding all `hyde` values under a top-level `hyde` YAML key

* adding `fixup-hyde-subfield` flag

* fixes to the merge logic

Adding `-Weverything` to clang

auto-release github action tweaks

Another crack at filtering out type-parameter-N-M

lambda type support, for auto return types that return a lambda

improving PR formatting