Fix missing self. prefix in PasteConfiguration property getters

All 15 property getters in PasteConfiguration referenced bare
`__name` instead of `self.__name`, causing NameError at runtime
when any getter was accessed. The setters were correct.

Author: mkusaka

api/library/python/iterm2/iterm2/binding.py

@@ -138,7 +138,7 @@ def _encode(self) -> str:
     @property
     def base64(self) -> bool:
         "Returns whether to base64-encode when pasting."
-        return __base64
+        return self.__base64
 
     @base64.setter
     def base64(self, value: bool):
@@ -148,7 +148,7 @@ def base64(self, value: bool):
     @property
     def wait_for_prompts(self) -> bool:
         "Returns whether to wait for a shell prompt before pasting."
-        return __wait_for_prompts
+        return self.__wait_for_prompts
 
     @wait_for_prompts.setter
     def wait_for_prompts(self, value: bool):
@@ -158,7 +158,7 @@ def wait_for_prompts(self, value: bool):
     @property
     def tab_transform(self) -> 'TabTransform':
         "Returns how to convert tabs to strings when pasting."
-        return __tab_transform
+        return self.__tab_transform
 
     @tab_transform.setter
     def tab_transform(self, value: 'TabTransform'):
@@ -168,7 +168,7 @@ def tab_transform(self, value: 'TabTransform'):
     @property
     def tab_stop_size(self) -> int:
         "When converting tabs to spaces, this gives the number of spaces per tab."
-        return __tab_stop_size
+        return self.__tab_stop_size
 
     @tab_stop_size.setter
     def tab_stop_size(self, value: int):
@@ -178,7 +178,7 @@ def tab_stop_size(self, value: int):
     @property
     def delay(self) -> float:
         "How long to wait between chunks (seconds)."
-        return __delay
+        return self.__delay
 
     @delay.setter
     def delay(self, value: float):
@@ -188,7 +188,7 @@ def delay(self, value: float):
     @property
     def chunk_size(self) -> bool:
         "Chunk size to send."
-        return __chunk_size
+        return self.__chunk_size
 
     @chunk_size.setter
     def chunk_size(self, value: bool):
@@ -198,7 +198,7 @@ def chunk_size(self, value: bool):
     @property
     def convert_newlines(self) -> bool:
         "Convert CRLF and LF to CR?"
-        return __convert_newlines
+        return self.__convert_newlines
 
     @convert_newlines.setter
     def convert_newlines(self, value: bool):
@@ -208,7 +208,7 @@ def convert_newlines(self, value: bool):
     @property
     def remove_newlines(self) -> bool:
         "Remove all newlines?"
-        return __remove_newlines
+        return self.__remove_newlines
 
     @remove_newlines.setter
     def remove_newlines(self, value: bool):
@@ -218,7 +218,7 @@ def remove_newlines(self, value: bool):
     @property
     def convert_unicode_punctuation(self) -> bool:
         "Returns whether to convert non-ASCII puncutation to ASCII equivalents when pasting."
-        return __convert_unicode_punctuation
+        return self.__convert_unicode_punctuation
 
     @convert_unicode_punctuation.setter
     def convert_unicode_punctuation(self, value: bool):
@@ -228,7 +228,7 @@ def convert_unicode_punctuation(self, value: bool):
     @property
     def escape_for_shell(self) -> bool:
         "Returns whether to escape control characters for input to a shell when pasting."
-        return __escape_for_shell
+        return self.__escape_for_shell
 
     @escape_for_shell.setter
     def escape_for_shell(self, value: bool):
@@ -238,7 +238,7 @@ def escape_for_shell(self, value: bool):
     @property
     def remove_controls(self) -> bool:
         "Returns whether to remove control characters when pasting."
-        return __remove_controls
+        return self.__remove_controls
 
     @remove_controls.setter
     def remove_controls(self, value: bool):
@@ -248,7 +248,7 @@ def remove_controls(self, value: bool):
     @property
     def bracket_allowed(self) -> bool:
         "Returns whether to allow bracketed paste."
-        return __bracket_allowed
+        return self.__bracket_allowed
 
     @bracket_allowed.setter
     def bracket_allowed(self, value: bool):
@@ -258,7 +258,7 @@ def bracket_allowed(self, value: bool):
     @property
     def use_regex_substitution(self) -> bool:
         "Returns whether to perform regular expression substitution. See regex and substitution."
-        return __use_regex_substitution
+        return self.__use_regex_substitution
 
     @use_regex_substitution.setter
     def use_regex_substitution(self, value: bool):
@@ -268,7 +268,7 @@ def use_regex_substitution(self, value: bool):
     @property
     def regex(self) -> bool:
         "The regular expression pattern to match. See use_regex_substitution."
-        return __regex
+        return self.__regex
 
     @regex.setter
     def regex(self, value: bool):
@@ -278,7 +278,7 @@ def regex(self, value: bool):
     @property
     def substitution(self) -> bool:
         "Replaces matches found by regex. See use_regex_substitution."
-        return __substitution
+        return self.__substitution
 
     @substitution.setter
     def substitution(self, value: bool):