Move more apps + language module (#1643)

* CoasterP to ext (Burger pager)
* LGE to ext app
* Solve compiler literal removal with centralizing common string literals.

firmware/common/ui_language.hpp

@@ -0,0 +1,34 @@
+#ifndef __UI_LANGUAGE_H__
+#define __UI_LANGUAGE_H__
+
+enum LanguageList {
+    ENGLISH,
+};
+
+enum LangConsts {
+    LANG_OK,
+    LANG_CANCEL,
+    LANG_ERROR,
+    LANG_MODEM_SETUP,
+    LANG_DEBUG,
+    LANG_LOG,
+    LANG_DONE,
+    LANG_START,
+    LANG_STOP,
+    LANG_SCAN,
+    LANG_CLEAR,
+    LANG_READY,
+    LANG_DATADP
+};
+
+class LanguageHelper {
+   public:
+    static void setLanguage(LanguageList lang);
+    static const char* getMessage(LangConsts msg);
+    static const char** currentMessages;  // expose, so can link directly too
+
+   private:
+    static const char* englishMessages[];
+};
+
+#endif