Work Tab v0.17.0.7

force priority recache after switching numeric/toggle mode
do not use numeric priorities when viewing toggled priorities
tweak scheduler icon offsets and deselect interaction
fully implement scheduler
margins around background indicators, better alignment of scheduled tip
add indicators for partially (time and/or subjobs) scheduled jobs
add some more job icons
implement copy/paste column
add sanity check for assigning disabled priorities (mostly for debugging purposes)
tweak play sounds settings toggles to behave more naturally
tweak scheduler tooltip, have sounds obey settings
implement user settings
cache tooltips and scheduled/partial status
add schedule tooltip
allow toggling scheduler, tweak scheduler placement/margins
force update of column size caches before expanding/collapsing worktypes
add timekeeper component
implement time bar
align time bar with workbox area