New library lib-strings for Identifier and internationalization

libraries/lib-strings/CMakeLists.txt

@@ -0,0 +1,35 @@
+#[[
+String wrapping types and internationalization support.
+
+Identifier and specializations of TaggedIdentifier generate types of strings
+used for different internal purposes, not meant for users to see (except
+sometimes in macro programming), and the types do not implicitly interconvert.
+
+TranslatableString holds the English msgid of a string meant for a user to see,
+and can also bind formatting arguments.  It can generate a translation later,
+even if the global choice of locale changes during its lifetime.  It does not
+implicitly interconvert with wxString.
+
+This library depends only on the wxBase subset of wxWidgets.
+]]#
+
+set( SOURCES
+   Identifier.cpp
+   Identifier.h
+   Internat.cpp
+   Internat.h
+   Languages.cpp
+   Languages.h
+   TranslatableString.cpp
+   TranslatableString.h
+   UnusedStrings.h
+   wxArrayStringEx.h
+   wxArrayStringEx.cpp
+)
+set( LIBRARIES
+   PRIVATE
+   wxBase
+)
+audacity_library( lib-strings "${SOURCES}" "${LIBRARIES}"
+   "" ""
+)