WordForward and WordBackward are not consistent with identical RuneType

[BDisp]

With WordForward:

With WordBackward:

[BDisp]

@tig if you try to do these same actions on notepad you'll see that it handle continuous IsSymbol and IsPunctuation as equivalent and delete all.
Considering the text "$schema" after press Ctrl+Delete the result will be:
NotePad delete the " and $:
schema"

TextModel only delete the ":
$schema"

Which behavior do you want for TextModel?

[tig]

I don' t have a strong opinion. What's yours?

[BDisp]

That depends if we want to delete all continuous IsSymbol and IsPunctuation or only delete continuous IsSymbol at once and then delete continuous IsPunctuation at once. I think that if we have !"#$%&/()=?»« this may be deleted at once. I would like the @tznind opinion too.

[tznind]

Let's go with the one that deletes most (symbols and punctuation).

If it's easy enough we can always make a protected virtual method or Regex for this matching so user can change if they really want