ADD: additional canal graphics (jamespetts/me)

git-svn-id: https://simutrans.svn.sourceforge.net/svnroot/simutrans/pak128.Britain@1173 e96eaf88-093e-0410-925f-862d53288611
ADD: Boeing 707 (Milko)

git-svn-id: https://simutrans.svn.sourceforge.net/svnroot/simutrans/pak128.Britain@1174 e96eaf88-093e-0410-925f-862d53288611