Fixes #7182

The current 10-second default timeout for rsync seems to be behind issue #6809.

As a workaround for the underlying issue in rsync when different versions are
used on the source and destination sides, don't include the timeout option
unless the user specifies a timeout > 0.

Allow you to pass in arbitrary rsync options. I also added help for it, and what version it was added in.

failed: [192.168.1.2] => {"cmd": "rsync --delay-updates -FF --compress --timeout=10 --delete-after --rsh 'ssh -i /home/jjshoe/.vagrant.d/insecure_private_key -o StrictHostKeyChecking=no' --rsync-path 'sudo rsync' --out-format='<<CHANGED>>%i %n%L' /tmp/app vagrant@192.168.1.2:/home/ubuntu/app", "failed": true, "item": "", "rc": 1}
msg: rsync: --delete does not work without --recursive (-r) or --dirs (-d).
rsync error: syntax or usage error (code 1) at main.c(1453) [client=3.0.9]

This allows usage of custom ssh configs for remote hosts where
the inventory user does not match the configured user.

Added a parameter for dest_port and also check ansible_ssh_port inventory variable.

The `-FF` option causes rsync to look for files in the source directory named `.rsync-filter` and uses them to filter directories underneath them. If no `.rsync-filter` files are found, the behavior is identical to the command run without the -FF option. This flag does not sync the .rsync-filter files themselves.

This change should be backwards compatible and not produce surprising behavior for users, since they are unlikely to create `.rsync-filter` files unintentionally.

Addresses #4676 Add module notes about the behavior of sudo and the destination paths within the synchronize module.

Add a timeout to the synchronize module to prevent infinite hangs while waiting on passwords for misconfigured users

Added archive options to sychronize module as suggested by @smoothify but with a different default scheme to keep param definitions to a minimum.

Added ingenious change detection trick from @smoothify though at the cost of verbosity controls. (Quiet or verbosity > 1 breaks change detection. Also added better use of module_common methods.