MRA/Sidescan: Implementing fix for sidescan data log files still being open after closing MRA window.
MRA/Sidescan: Add cleanup function that closes the sidescan data log file.
MRA/Sidescan: Added call to cleanup function that closes the sidescan data log files.
MRA/Sidescan: Fixed canBeApplied that was locking sidescan resource files. Closes issue #3194.
Merge branch 'issue/3194' into release/neptus-4.2.x