buildVars: add braileTables dictionary. Re #38.

NVDA 2024.3 introduces custom braille tables support, implemented in add-ons via a new manifest section named 'brailleTables'. In the add-on template, support it via a new 'brailleTables' dictionary that records a custom braille table (key) and associated manifest section entries (displayName (name of the table shown to users), contracted (true/false), input (true/false), output (true/false)). The new dictionary will be picked up by SCons when packaging custom braille translations table add-on, with displayName field to be translated.

buildVars.py

@@ -77,3 +77,13 @@ def _(arg):
 # Extensions string must be of the form "markdown.extensions.extensionName"
 # e.g. "markdown.extensions.tables" to add tables.
 markdownExtensions = []
+
+# Custom braille translation tables
+# If your add-on includes custom braille tables (most will not), fill out this dictionary.
+# Each key is a dictionary named according to braille table file name,
+# with keys inside recording the following attributes:
+# displayName (name of the table shown to users and translatable),
+# contracted (contracted (True) or uncontracted (False) braille code),
+# output (shown in output table list),
+# input (shown in input table list).
+brailleTables = {}