wfreerdp: floatbar: add bmp resources.
wfreerdp: floatbar: add bmp resources ids.
wfreerdp: floatbar: add implementation.
wfreerdp: floatbar: enabled.
wfreerdp: floatbar: add files to CMakeLists.
wfreerdp: floatbar: rename functions.
wfreerdp: floatbar: fix lock behavior.
wfreerdp: floatbar: fix lose position after fullscreen toggling.
                    minor code cleanup.
wfreerdp: floatbar: code reduce.
Merge pull request #1703 from zhangzl2013/wfreerdp-floatbar

wfreerdp floatbar