Fix typos with codespell

Using codespell 2.1.0.

Method:
```
$ cat > ../godot-word-whitelist.txt << EOF
ang
curvelinear
dof
doubleclick
fave
findn
GIRD
leapyear
lod
merchantibility
nd
numer
ois
ony
que
readded
seeked
statics
synching
te
uint
unselect
webp
EOF

$ codespell -w -q 3 -I ../godot-word-whitelist.txt --skip="./thirdparty,*.po"
$ git diff // undo unwanted changes
```

misc/dist/windows/modpath.pas

@@ -144,7 +144,7 @@ begin
 	end;
 end;
 
-// Split a string into an array using passed delimeter
+// Split a string into an array using passed delimiter
 procedure MPExplode(var Dest: TArrayOfString; Text: String; Separator: String);
 var
 	i: Integer;