feature: agrego comando branch para listar ramas

src/git_flow/main.py

@@ -5,6 +5,7 @@ from argparse import Namespace, ArgumentParser
 
 from git_flow import GitFlowError
 from git_flow.command.base import Command
+from git_flow.command.branch import BranchCommand
 from git_flow.command.commit import CommitCommand
 from git_flow.command.init import InitCommand
 from git_flow.command.merge import MergeCommand
@@ -70,6 +71,7 @@ def main():
         MergeCommand(),
         TagCommand(),
         ReleaseCommand(),
+        BranchCommand()
     )
     try:
         command.run()