Complete Refactor for target/bin (#1654)

* documentation and script updates trying to fix #1647
* preparations for refactoring target/bin/
* complete refactor for target/bin/
* changing script output slightly
* outsourcing functions in `bin-helper.sh`
* re-wrote linting to allow for proper shellcheck -x execution
* show explanation for shellcheck ignore
* adding some more information

hooks/build

@@ -3,6 +3,6 @@ VCS_REF=$(git rev-parse --short HEAD)
 VCS_VERSION=$(git describe --tags --contains --always)
 
 docker build \
-	--build-arg VCS_REF="$VCS_REF" \
-	--build-arg VCS_VERSION="$VCS_VERSION" \
-	-f "$DOCKERFILE_PATH" -t "$IMAGE_NAME" .
+  --build-arg VCS_REF="$VCS_REF" \
+  --build-arg VCS_VERSION="$VCS_VERSION" \
+  -f "$DOCKERFILE_PATH" -t "$IMAGE_NAME" .