add code formatting (charlie-foxtrot#465)

* add script to use clang-format to reformat all c/cpp source
* add clang formatting workflow to fail if code isn't formatted
* add clang format to development container and vscode config
* remove ubuntu-20..04 version of dev container leaving only ubuntu-latest
* add pre-commit hook
* add basic .clang-format config file
* run pre-commit checks on all files and update them
* add code formatting badge to readme

Docker updates for wiki (charlie-foxtrot#464)

tweaks to docker and add sample NOAA config file

change creation of release to be only if not patch release and cleanu…

…p readme (charlie-foxtrot#463)

Fix mirisdr and add to docker builds (charlie-foxtrot#462)

* add installing libmirisdr-4 to both docker and CI builds
* fix warnings in input-mirisdr.cpp

Fix ci workflow names (charlie-foxtrot#461)

* fix GitHub workflow names

Fix broadcom GPU build error (charlie-foxtrot#459)

* change the CI build on rpi3b build to use broadcom GPU
* disable -Wcast-qual for hello_fft

Detect `RTL_AIRBAND_VERION` when building from a release archive (cha…

…rlie-foxtrot#456)

* add script to get version string either from git or parent dir name

Docker container not getting version string (charlie-foxtrot#454)

* Fix workflow that builds docker containers so the version string compiled into the binary is accurate

Get version from git (charlie-foxtrot#450)

* get version from git tag rather than hard coded in cmake

Create a release on each tag (charlie-foxtrot#453)

create a release on each tag, rename workflows