applicationcontrols/DigitalReadOut: fixed wrong implicit size
pathview: complete rework of camera and view mode handling
halremote/HalRemoteComponent: changed method for detecting HalPin
objects to prevent possible bugs in the future
applicationcontrols/ServiceWindow and halremotecontrols/
services
pathview: introduced unit conversion for PreviewClient
application/ApplicationSettings: added new settings
pathview/PathView3D: made use of new settings
small code style fixes dues to cppcheck suggestion