- Dump logs to file every 10 sec.
- max file size is 50 MB
(after reaching it, no more logs will be logged),
- Add `LockGuard` with locking mechanism
supporting IRQ and use it in `Logger`.
- Fix minor style issues in `Logger`.
- Add `mount_user_lfs_partition.py` script for mounting LFS on Linux FS
in order to get `MuditaOS.log` file from `user` partition
Because `vsnprintf` return value means:
"
The number of characters that would have been
written if n had been sufficiently large,
not counting the terminating null character.
If an encoding error occurs, a negative number is returned.
"
`Logger` crashed when log msg was longer than LOGGER_BUFFER_SIZE.
Checking `vsnprintf` return value solves this issue.
