[FilterSelector] Updated UI to support free definition of filters

src/shared/Components/FilterSelector/FilterSelector.cpp

src/shared/Components/FilterSelector/FilterSelector.h

src/shared/Components/FilterSelector/FilterSelector.ui

...ared/Components/SubscriptionsPanel/SubscriptionsPanel.cpp

src/shared/Modules/CompactCommandPad/CommandSelector.cpp

src/shared/Modules/MainStateViewer/MainStateViewer.cpp

src/shared/Modules/Mavlink/BaseMavlinkModule.cpp

src/shared/Modules/PayloadStateViewer/PayloadStateViewer.cpp

src/shared/Modules/RigStateViewer/RigStateViewer.cpp

src/shared/Modules/ValvesViewer/ValvesViewer.cpp