Added version and help cli command

src/cpl_cli/command_handler.py

@@ -0,0 +1,22 @@
+from cpl.dependency_injection.service_abc import ServiceABC
+from cpl_cli.command import Command
+
+
+class CommandHandler(ServiceABC):
+
+    def __init__(self):
+        ServiceABC.__init__(self)
+
+        self._commands: list[Command] = []
+
+    def add_command(self, cmd: Command):
+        self._commands.append(cmd)
+
+    def remove_command(self, cmd: Command):
+        self._commands.remove(cmd)
+
+    def handle(self, cmd: str, args: list[str]):
+        for command in self._commands:
+            if cmd == command.name or cmd in command.aliases:
+                print(command.command)
+                command.command.run(args)