LibCore: Add CConfigFile::open() for opening an arbitrary INI file

Libraries/LibCore/CConfigFile.cpp

@@ -21,6 +21,11 @@ NonnullRefPtr<CConfigFile> CConfigFile::get_for_system(const String& app_name)
     return adopt(*new CConfigFile(path));
 }
 
+NonnullRefPtr<CConfigFile> CConfigFile::open(const String& path)
+{
+    return adopt(*new CConfigFile(path));
+}
+
 CConfigFile::CConfigFile(const String& file_name)
     : m_file_name(file_name)
 {

Libraries/LibCore/CConfigFile.h

@@ -11,6 +11,7 @@ class CConfigFile : public RefCounted<CConfigFile> {
 public:
     static NonnullRefPtr<CConfigFile> get_for_app(const String& app_name);
     static NonnullRefPtr<CConfigFile> get_for_system(const String& app_name);
+    static NonnullRefPtr<CConfigFile> open(const String& path);
     ~CConfigFile();
 
     bool has_group(const String&) const;