Bug TMP_InputField character validation

I found two bugs related to character validation in TMP_InputField:
1. Pasting from the clipboard
TMP_InputField.Append(string input) doesn't allow \v & doesn't prevent latin-1 supplement.
2. Typing new characters:
TMP_InputField.IsValidChar doesn't prevent control characters.

This can be easily solved:

Code (CSharp):

1. protected virtual bool IsValidChar(char c)
2. {
3.     // TODO - Fix bugs with text starting with \u0003
4.     return c >= '\t' && c <= '\v' || c == '\r' || c >= ' ' && c <= '~' || c >= '\u00A0';  // Allows only printable characters
5.    // With the addition of Dynamic support, I think this will best be handled by the text component.
6.    //return m_TextComponent.font.HasCharacter(c, true);
7. }
8.  
9. protected virtual void Append(string input)
10. {
11.     if (readOnly || !InPlaceEditing())
12.         return;
13.  
14.     for (int i = 0, imax = input.Length; i < imax; ++i)
15.     {
16.         char c = input[i];
17.         if (IsValidChar(c))  // More concise
18.             Append(c);
19.     }
20. }

It's possible to fix this in a child class of TMP_InputField, but that requires to re-implement InPlaceEditing as it's private.