Add more ways to enter trade mark and registered sign

* lisp/international/iso-transl.el (iso-transl-char-map): Add sequence
for TRADE MARK.
* lisp/leim/quail/latin-post.el ("latin-postfix"): Add REGISTERED SIGN
and TRADE MARK.
* lisp/leim/quail/latin-pre.el ("latin-prefix"): Add TRADE MARK.

lisp/international/iso-transl.el

@@ -161,6 +161,8 @@
     ("R"    . [?®])
     ("*S"   . [?§])
     ("S"    . [?§])
+    ("*T"   . [?™])
+    ("T"    . [?™])
     ("*Y"   . [?¥])
     ("Y"    . [?¥])
     ("^0"   . [?⁰])

lisp/leim/quail/latin-post.el

@@ -2246,13 +2246,14 @@ of characters from a single Latin-N charset.
   dot        |    .    | z. -> ż
   stroke     |    /    | d/ -> đ
   nordic     |    /    | d/ -> ð   t/ -> þ   a/ -> å   e/ -> æ   o/ -> ø
+  symbols    |    ^    | r^ -> ®   t^ -> ™
   others     |    /    | s/ -> ß   ?/ -> ¿   !/ -> ¡   // -> °   o/ -> œ
              | various | << -> «   >> -> »   o_ -> º   a_ -> ª
 
 Doubling the postfix separates the letter and postfix: e.g. a\\='\\=' -> a\\='
 " nil t nil nil nil nil nil nil nil nil t)
 
-;; Fixme: ¦ § ¨ © ¬ ­ ® ¯ ± ² ³ ´ µ ¶ · ¸ ¹ ¼ ½ ¾ × ÷
+;; Fixme: ¦ § ¨ © ¬ ­ ¯ ± ² ³ ´ µ ¶ · ¸ ¹ ¼ ½ ¾ × ÷
 (quail-define-rules
  (" _" ? )
  ("!/" ?¡)
@@ -2417,6 +2418,7 @@ Doubling the postfix separates the letter and postfix: e.g. a\\='\\=' -> a\\='
  ("o~" ?õ)
  ("r'" ?ŕ)
  ("r," ?ŗ)
+ ("r^" ?®)
  ("r~" ?ř)
  ("s'" ?ś)
  ("s," ?ş)
@@ -2426,6 +2428,7 @@ Doubling the postfix separates the letter and postfix: e.g. a\\='\\=' -> a\\='
  ("t," ?ţ)
  ("t/" ?þ)
  ("t/" ?ŧ)
+ ("t^" ?™)
  ("t~" ?ť)
  ("u'" ?ú)
  ("u," ?ų)

lisp/leim/quail/latin-pre.el

@@ -1108,7 +1108,7 @@ of characters from a single Latin-N charset.
     misc     | \" ~ /  | \"s -> ß  ~d -> ð  ~t -> þ  /a -> å  /e -> æ  /o -> ø
    symbol    |   ~    | ~> -> »  ~< -> «  ~! -> ¡  ~? -> ¿  ~~ -> ¸
    symbol    |  _ /   | _o -> º  _a -> ª  // -> °  /\\ -> ×  _y -> ¥
-   symbol    |   ^    | ^r -> ®  ^c -> ©  ^1 -> ¹  ^2 -> ²  ^3 -> ³
+   symbol    |   ^    | ^r -> ®  ^t -> ™  ^c -> ©  ^1 -> ¹  ^2 -> ²  ^3 -> ³
 " nil t nil nil nil nil nil nil nil nil t)
 
 (quail-define-rules
@@ -1224,6 +1224,7 @@ of characters from a single Latin-N charset.
  ("^o" ?ô)
  ("^r" ?®)
  ("^s" ?ŝ)
+ ("^t" ?™)
  ("^u" ?û)
  ("^w" ?ŵ)
  ("^y" ?ŷ)