CMiscMenue: add entry for temporarily debug mode settings

Option "Level" overwrites assigned debug level output mode of Neutrino
start parameters, but only temporarily till change of options by user
or restart of Neutrino.
CComponents: use neutrino debug mode for debug output
CComponentsFrmChain: add missing parameter 'parent'

supplement to 23d7b62cf04845305af22fb54716c16c05063941
CComponentsPIP: use a default frame with thickness 2 and small corner radius
CComponentsHeader: rework context button handling

CComponentsHeader uses now CComponentsIconForm, which is now derived
from CComponentsFrmChain. Some methods should be now simplified and
allow to handle some modifications easier.
CComponentsText: rework constructor

allows usage of parent parameter without another parameter
CComponentsFrmClock: add missing init of items
Merge remote-tracking branch 'cool-next-cc/next-cc'