Added timestamp to logger (crewAIInc#646)

* Added timestamp to logger

Updated the logger.py file to include timestamps when logging output. For example:

 [2024-05-20 15:32:48][DEBUG]: == Working Agent: Researcher
 [2024-05-20 15:32:48][INFO]: == Starting Task: Research the topic
 [2024-05-20 15:33:22][DEBUG]: == [Researcher] Task output:

* Update tool_usage.py

* Revert "Update tool_usage.py"

This reverts commit 95d18d5.

incorrect bramch for this commit

src/crewai/utilities/logger.py

@@ -13,4 +13,6 @@ def __init__(self, verbose_level=0):
     def log(self, level, message, color="bold_green"):
         level_map = {"debug": 1, "info": 2}
         if self.verbose_level and level_map.get(level, 0) <= self.verbose_level:
-            self._printer.print(f"[{level.upper()}]: {message}", color=color)
+            timestamp = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+            self._printer.print(f"[{timestamp}][{level.upper()}]: {message}", color=color)
+