Refactor/project structure (#3085)

* refactor project structure

* environment-based default registry

* fix tests

* update build container

* use docker platform for iso build emulation

* simplify compat

* Fix docker platform spec in run-compat.sh

* handle riscv compat

* fix bug with dep error exists attr

* undo removal of sorting

* use qemu for iso stage

---------

Co-authored-by: Mariusz Kogen <k0gen@pm.me>
Co-authored-by: Matt Hill <mattnine@protonmail.com>

.gitignore

@@ -1,28 +1,22 @@
 .DS_Store
 .idea
-/*.img
-/*.img.gz
-/*.img.xz
-/*-raspios-bullseye-arm64-lite.img
-/*-raspios-bullseye-arm64-lite.zip
+*.img
+*.img.gz
+*.img.xz
+*.zip
 /product_key.txt
 /*_product_key.txt
 .vscode/settings.json
 deploy_web.sh
-deploy_web.sh
 secrets.db
 .vscode/
-/cargo-deps/**/*
-/PLATFORM.txt
-/ENVIRONMENT.txt
-/GIT_HASH.txt
-/VERSION.txt
-/*.deb
+/build/env/*.txt
+*.deb
 /target
-/*.squashfs
+*.squashfs
 /results
 /dpkg-workdir
 /compiled.tar
 /compiled-*.tar
-/firmware
-/tmp
+/build/lib/firmware
+tmp