eeschema now supports arbitrary colors for all object types, and
pcbnew does in GAL canvas. When switching from GAL to legacy canvas,
pcbnew will convert colors to the nearest legacy color.
* Remove wxDC and EDA_DRAW_FRAME parameters from SCH_SCREEN::SchematicCleanUp()
function call.
* Update all code that calls SCH_SCREEN::SchematicCleanUp() with wxDC and/or EDA_DRAW_FRAME
parameters.
* Fix a display refresh bug when incrementally inserting bus entries created in my last commit.
IsDanglingStateChanged() appears to be broke for bus entries.
* Remove wxDC and EDA_DRAW_PANEL as parameters from function
SCH_SCREEN::TestDanglingEnds().
* Change SCH_SCREEN::TestDanglingEnds() to return the connection change state
rather than the dangling end status which wasn't used anywhere.
* Update all calls to SCH_SCREEN::TestDanglingEnds() to remove wxDC and
EDA_DRAW_PANEL parameters and refresh connection indicators only if a
connection state change occurred.
* Add function to get a list pointers to this sheet and all of it's sub-sheets
to SCH_SHEET.
* Remove unused function SetFootprintField() from SCH_SHEET_PATH.
* Add code to SCH_SHEET object to clear annotation.
* Change SCH_COMPONENT::GetPath() to derive path from SCH_SHEET object instead
of SCH_SHEET_PATH object.
* Remove clear annotation code from SCH_SCREENS object.