Filesystem creation step is moved on the later stage: when Talos mounts
the partition for the first time.
Now it checks if the partition doesn't have any filesystem and formats
it right before mounting.
Additionally refactored mount options a bit:
- replaced separate options with a set of binary flags.
- implemented pre-mount and post-unmount hooks.
And fixed typos in couple of places and increased timeout for `apid ready`.
Signed-off-by: Artem Chernyshev <artem.0xD2@gmail.com>
