Add RPM control to both agents and crews (#133)

* moving file into utilities
* creating Logger and RPMController
* Adding support for RPM to agents and crew

src/crewai/utilities/logger.py

@@ -0,0 +1,11 @@
+class Logger:
+    def __init__(self, verbose_level=0):
+        verbose_level = (
+            2 if isinstance(verbose_level, bool) and verbose_level else verbose_level
+        )
+        self.verbose_level = verbose_level
+
+    def log(self, level, message):
+        level_map = {"debug": 1, "info": 2}
+        if self.verbose_level and level_map.get(level, 0) <= self.verbose_level:
+            print(f"\n[{level.upper()}]: {message}")