Fixed up all applications

Moved the main module for oxitopview into the new oxitopdump.oxitopview
module, and fixed up all code for loading .ui files to use the new
pkg_resources based get_ui_file code. get_icon is also updated to use
pkg_resources (or an emulated version in the case of Pyinstaller frozen
installs).

Added a couple of missing imports to terminal too. All apps seem happy
to run now, at least superficially.