Drop 'IBM' from 3270's names

[why]
The font was always called 3270.
Having a big company's name in the fontname is scary 😬

See
https://github.com/rbanffy/3270font/issues/60

[how]
Add renaming rule.

Fixes: #1012

Signed-off-by: Fini Jastrow <ulf.fini.jastrow@desy.de>

bin/scripts/lib/fonts.json

@@ -1,7 +1,7 @@
 {
   "fonts": [
     {
-      "unpatchedName": "3270",
+      "unpatchedName": "IBM 3270",
       "RFN": false,
       "patchedName": "3270",
       "folderName": "3270",

bin/scripts/name_parser/FontnameTools.py

@@ -176,7 +176,7 @@ class FontnameTools:
         ( '(m)plus',                    r'\1+'), # Added this, because they use a plus symbol :->
         ( 'Gohufont',                   r'GohuFont'), # Correct to CamelCase
         # Noone cares that font names starting with a digit are forbidden:
-        # ( '(3270)',                     r'Ibeam\1'),
+        ( 'IBM 3270',                   r'3270'), # for historical reasons and 'IBM' is a TM or something
     ]
 
     @staticmethod