Add more needed options to CLI

[amgross]

PR for adding needed CLI options
most of them needed because they are stored in the superblock and compared upon init.
Inline max may improve flash usage in rare cases

[BrianPugh]

most of them needed because they are stored in the superblock and compared upon init.

Could you elaborate on this a bit more? I'm sure you're right, but I'm just trying to get in the right mindset 😄 .

Also maybe add comments then about why/when we would want to set these? Like is there any benefit in setting a lower attr_max?

I guess what i'm mainly looking for here is "what's the motiviation"

[amgross]

There are two questions about attr_max + name_max + file_max

1. Why someone will want to set it:
   to ensure users not stuffing the filesystem with too big user attributes / file names / big files.
   this is nice but not important enough for adding to CLI (if user want he can use littlefs-python without CLI)
2. Why it is important to add those parameters to CLI
   See https://github.com/littlefs-project/littlefs/blob/master/lfs.c#L4562 and all lines below it.
   each mount those parameters checked against their values stored on disk and if given values are higher than what on disk the mount will fail.
   hence for the none-create CLI those parameters may be critical to be able to mount if the drive is with the non-default values.
   for create it is important to be able to limit the user that will use afterward the created image on the real device.

Hope it is clear now, if not feel free to ask

[BrianPugh]

makes sense, thank you!