Crash when restoring index filter

[Mikhail Lopatkin]

1. Create index filter
2. Close app
3. Re-open app

Result - crash due to cyclic dependency

[Mikhail Lopatkin]

Fix #115: Break cyclic dependency on MainFilterController

LogModelFilter now has separate implementation but it is totally controlled by the MainFilterController. This allows us to create LogTable with Filter first and then create MainFilterController which restores saved filters.

→ <<cset e1cd38f9610a>>