* implement native sqlite support as a feature flag following [1]
([1] is mentioned as a checklist of sorts as to how to add a new
feature flag in [2])
[1] 13f65f05ae
[2] https://github.com/babashka/babashka/blob/master/doc/build.md
* bump to latest sqlite-jdbc, remove some no longer needed config+libs
based on feedback from borkdude here [1], bump xerial/sqlite-jdbc
3.36.0.3, which includes the graalvm classes and resource config
previously implemented via ericdallo/sqlite-jni-graal-fix and a `-H`
flag in `script/compile`
[1]: https://github.com/babashka/babashka/pull/1079#issuecomment-980533178
* make core.async integral (not a feature)
tasks (in particular, parallel tasks) require core.async
* make rewrite_clj integral (not a feature)
* cleanup mistakes
* put tools.logging behind a feature flag
* add tools.logging.readable
- move logging namespace to feature folder
- add logging.readable namespace
- add tests for logging.readable
* cleanup logging changes
- add logging env var to compile script
- remove unconditional require of logging namespace
* move old-config capture to before alter
* remove feature check from logging tests
1. Explain how to build `bb` for linux using docker.
2. Add support for setting the various `BABASHKA_FEATURE_*`
when doing docker build via `--build-arg`.
