tsp: identify clients via pid
- add tsp_cmd_register to set pid
tkbio: add tkbio_switch for app switching
type_select: add 'locked' status
- rename status to active
- dont change 'active' status when locked
tkbio: fix signal handling
tsp: dont send activate event if already active
tkbio: return TKBIO_RETURN_ACTIVATE on tsp activate
type_select/slider: add redraw option for set functions
add menu application