[EGD-4763] Fix Unit Tests

First attempt, move vfs to be init in tests

[EGD-5451] Cleaned i18n header from vfs

internationalization is included nearly everywhere in system it
should not be polluted with include which is to be removed

[EGD-5415] Fix missing assets dep for lfstest.img

Addionally, the genlfstestimg.sh script now accepts files to include
in the image as arguments

[EGD-5070] Change new filesystem in module bt

Due to vfs deprecation there is need to
remove all vfs calls from code.
This PR covers module bluetooth.

[EGD-5070] Review changes.

[EGD-5070] Change new filesystem in module bt

Due to vfs deprecation there is need to
remove all vfs calls from code.
This PR covers module bluetooth

[EGD-5018] Add umount all filesystem

Add umount all mounted filesystem. This function
can be used in the cleanup vfs core stage

[EGD-4754] Add automount default filesystems

Default automount and parse partitions according to
their configurations using new vfs core. Currently
old (without lfs) and new (with lfs) part schemes are supported

[EGD-4502] Fix and remove old vfs boot

Remove old vfs bootconfig from the vfs which
will be removed in the later commit

[EGD-4757] Add unit test for new filesystem

Due to vfs deprecation new filesystem needs
unit tests to verify it's behaviour.This PR
covers core filesystem operations.

[EGD-5035] Fix error translation fs

Quickfix for error translation issue in new filesystem.

[EGD-5022] Fix invalid open flags in vfscore

Opening file with O_CREAT mode on the mounted fat filesystem
should create file if doesn't exist. Currently it returns ENOENT
This path fix this issue. ff_fat create flags are fixed.

[EGD-5016] Fix vfs-littlefs failed mount init

Fix issue with memory leak during mount in littlefs core
when mount fails.

[EGD-4758] Add lfs object state sync

Add lfs object state sync.

[EGD-4758] Fix includes in littlefs

Fix includes in the littlefs

[EGD-4758] Add block size and fs size

Add blocks size and blocks count detecting
of the file size.

[EGD-4758] Fix littlefs directory iterator

Directory iterator now seams to be working

[EGD-4758] Add unit tests for littlefs

Some tests passed but it needs some work...

[EGD-4758] Fix littlefs boundary check

    Currently littlefs boudary is checked in the wrong place
    this commit fix this issue

[EGD-4758] Add Littlefs unit test

This is an initial implementation of littlefs
unit tests

[EGD-4758] Add Littlefs config

Add littlefs config
Signed-off-by: Lucjan Bryndza <lucjan.bryndza@mudita.com>

[EGD-4758] Add littlefs core filesystem

Filesystem completed