Support nfs guest and prompt for firewall

[vdloo]

Add nfs_guest support

• make firewall configurable in settings
• remove fs type from base config
• prompt for fs type
• add nfs_guest as fs option
• bump version to vagrant-hypconfigmgmt 0.0.3

$ vagrant up
Bringing machine 'hypernode' up with 'virtualbox' provider...
    hypernode: Is this a Magento 1 or 2 Hypernode? [default 2]: 
==> hypernode: Nginx will be configured for Magento 2. /data/web/magento2/pub will be symlinked to /data/web/public
    hypernode: Is this a PHP 5.5 or 7.0 Hypernode? [default 7.0]: 
==> hypernode: Will boot a box with PHP 7.0 installed
    hypernode: Do you want to enable Varnish? Enter true or false [default false]: 
==> hypernode: Varnish will be disabled by loading a nocache vcl.
    hypernode: What filesystem type do you want to use? Options: nfs_guest, nfs, rsync, virtualbox [default virtualbox]: nfs_guest
==> hypernode: The host will mount NFS folders served by the guest
==> hypernode: Disabling fs->folders->magento1 in the local.yml because Magento 2 was configured..
==> hypernode: Disabling the firewall in the guest because fs type nfs_guest might run into some problems otherwise.
==> hypernode: Will use PHP 7. If you want PHP 5.5 instead change the php version in local.yml.
==> hypernode: Your hypernode-vagrant is now configured. Please run "vagrant up" again.