Features should provide a meaningful error message if it's not supported by a devcontainer image

Most Features are only supported on Debian-based devcontainer images. Adding these features to an Alpine or Red Hat devcontainer often results in error messages such as "dpkg: not found."

An error message stating that the OS isn't supported would be more intuitive.

Given that the [common-utils](https://github.com/devcontainers/features/blob/d53b9d1816bac7a62f9ba5f20723eef428042d1f/src/common-utils/main.sh#L322) script already supports this (see below), it shouldn't be difficult to adapt in other features.

Requiring such a "preamble" may encourage developers to support other base devcontainer images, much like [common-utils](https://github.com/devcontainers/features/blob/d53b9d1816bac7a62f9ba5f20723eef428042d1f/src/common-utils/main.sh#L336) does.

```bash
# Bring in ID, ID_LIKE, VERSION_ID, VERSION_CODENAME
. /etc/os-release
# Get an adjusted ID independent of distro variants
if [ "${ID}" = "debian" ] || [ "${ID_LIKE}" = "debian" ]; then
ADJUSTED_ID="debian"
elif [[ "${ID}" = "rhel" || "${ID}" = "fedora" || "${ID}" = "mariner" || "${ID_LIKE}" = *"rhel"* || "${ID_LIKE}" = *"fedora"* || "${ID_LIKE}" = *"mariner"* ]]; then
ADJUSTED_ID="rhel"
elif [ "${ID}" = "alpine" ]; then
ADJUSTED_ID="alpine"
else
echo "Linux distro ${ID} not supported."
exit 1
fi
```