utility: Added ConsoleLogger

Adds the class ConsoleLogger, which logs LogMessages to std::cout. The
Application class creates and registers a ConsoleLogger on creation.

Output format:
<time> | <filename>:<line> <function>() | <type>: <message>

Example:
12:58:18 | Application.cpp:21 create() | INFO: hello world!
12:58:18 | Application.cpp:22 create() | WARNING: attention world!
12:58:18 | Application.cpp:23 create() | ERROR: world failed

review=4
reviewer=stalli, malte

src/lib/utility/logging/ConsoleLogger.cpp

@@ -0,0 +1,36 @@
+#include "utility/logging/ConsoleLogger.h"
+
+#include <iostream>
+
+ConsoleLogger::ConsoleLogger()
+	: Logger("ConsoleLogger")
+{
+}
+
+ConsoleLogger::~ConsoleLogger()
+{
+}
+
+void ConsoleLogger::logInfo(const LogMessage& message)
+{
+	logMessage("INFO", message);
+}
+
+void ConsoleLogger::logWarning(const LogMessage& message)
+{
+	logMessage("WARNING", message);
+}
+
+void ConsoleLogger::logError(const LogMessage& message)
+{
+	logMessage("ERROR", message);
+}
+
+void ConsoleLogger::logMessage(const std::string& type, const LogMessage& message)
+{
+	std::cout
+		<< message.getTimeString("%H:%M:%S") << " | "
+		<< message.getFileName() << ':' << message.line << ' ' << message.functionName << "() | "
+		<< type << ": " << message.message
+		<< std::endl;
+}