Ontario touchup

-Ontarioan province map tweaked
-Empire of Canada's color changed to EU4 Canada's green RGB values.
-County of Haldimand renamed 'District of Gore', as modern Haldimand Co.
is no longer in the reworked province and 'Gore District' is a historic
municipality centered on Hamilton.
-Counties of Toronto and Sauga merged
-County of Oshawa now east of Toronto
-Duchy of Southern Ontario now split between Huronia and Talbot
-Flags for new counties and duchies updated
-Positions.txt updated