react-native-codegen: Enable C++ TurboModule generation in OpenSource…

… builds

Summary:
This enables the generation of C++ TurboModule specs in addition to existing Java/ObjC ones.

An example is shown in #35138

Changelog: [Internal]

Differential Revision: D41057630

fbshipit-source-id: 51e8686461788c7a6f3644932abd99dff9e15edf

scripts/codegen/generate-specs-cli-executor.js

@@ -17,16 +17,16 @@ const RNCodegen = utils.getCodegen();
 
 const GENERATORS = {
   all: {
-    android: ['componentsAndroid', 'modulesAndroid'],
-    ios: ['componentsIOS', 'modulesIOS'],
+    android: ['componentsAndroid', 'modulesAndroid', 'modulesCxx'],
+    ios: ['componentsIOS', 'modulesIOS', 'modulesCxx'],
   },
   components: {
     android: ['componentsAndroid'],
     ios: ['componentsIOS'],
   },
   modules: {
-    android: ['modulesAndroid'],
-    ios: ['modulesIOS'],
+    android: ['modulesAndroid', 'modulesCxx'],
+    ios: ['modulesIOS', 'modulesCxx'],
   },
 };