Use pre-processed cldr production data (nvaccess#12422)

Fixes nvaccess#11963

Summary of the issue:
Some time around CLDR release 36, CLDR started including "↑↑↑" in annotation values as a placeholder which meant that the value should be inherited from a parent locale.
These ↑↑↑ values were being put straight into NVDA's cldr dictionaries without any further processing, causing languages such as Chinese (Hongkong) and others to speak these ↑↑↑ values instead of useful emoji labels.

Description of how this pull request fixes the issue:
NVDA now includes the cldr-staging repository as a submodule, rather than the cldr repository. The cldr-staging repository contains a production directory, with all its xml files pre-processed to include inherited values rather than the ↑↑↑ placeholders.

.gitmodules

@@ -29,4 +29,4 @@
 	url = https://github.com/w3c/aria-practices
 [submodule "include/cldr"]
 	path = include/cldr
-	url = https://github.com/unicode-org/cldr.git
+	url = https://github.com/unicode-org/cldr-staging.git

cldrDict_sconscript

@@ -119,8 +119,8 @@ NVDAToCLDRLocales = {
 	"zh_tw":("zh","zh_Hant"),
 }
 
-annotationsDir = env.Dir("include/cldr/common/annotations")
-annotationsDerivedDir = env.Dir("include/cldr/common/annotationsDerived")
+annotationsDir = env.Dir("include/cldr/production/common/annotations")
+annotationsDerivedDir = env.Dir("include/cldr/production/common/annotationsDerived")
 for destLocale, sourceLocales in NVDAToCLDRLocales.items():
 	cldrSources = []
 	# First add all annotations, then the derived ones.

user_docs/en/changes.t2t

@@ -67,6 +67,7 @@ This release also drops support for Adobe Flash.
 - Fixed the pitch change failure in SAPI4 speech synthesizer. (#12311)
 - The NVDA installer now also honors the ``--minimal`` command line parameter and does not play the start-up sound, following the same documented behavior as an installed or portable copy NVDA executable. (#12289)
 - In MS Word or Outlook, the table quick navigation key can now jump to layout table if "Include layout tables" option is enabled in Browse mode settings. (#11899)
+- NVDA will no longer announce "↑↑↑" for emojis in particular languages. (#11963)
 
 
 == Changes for Developers ==