Map vagrant interface number to box interface name

[bwks]

Depending on the box type, interfaces dont always start at 1. sometimes 0, sometimes 2. It would be handy to have an auto-mapping function to line up the interface mappings.

interface_maps = {
    'csr': {
        1: 'GigabitEthernet2',
        2: 'GigabitEthernet3',
        3: 'GigabitEthernet4',
        4: 'GigabitEthernet5',
        5: 'GigabitEthernet6',
        6: 'GigabitEthernet7',
        7: 'GigabitEthernet8',
    },
    'iosv': {
        1: 'GigabitEthernet0/1',
        2: 'GigabitEthernet0/2',
        3: 'GigabitEthernet0/3',
        4: 'GigabitEthernet0/4',
        5: 'GigabitEthernet0/5',
        6: 'GigabitEthernet0/6',
        7: 'GigabitEthernet0/7',
    }
    'iosv-l2': {
        1: 'GigabitEthernet0/1',
        2: 'GigabitEthernet0/2',
        3: 'GigabitEthernet0/3',
        4: 'GigabitEthernet1/0',
        5: 'GigabitEthernet1/1',
        6: 'GigabitEthernet1/2',
        7: 'GigabitEthernet1/3',
        8: 'GigabitEthernet2/0',
        9: 'GigabitEthernet2/1',
        10: 'GigabitEthernet2/2',
        11: 'GigabitEthernet2/3',
    },
    'iosxrv': {
        1: 'GigabitEthernet0/0/0/0',
        2: 'GigabitEthernet0/0/0/1',
        3: 'GigabitEthernet0/0/0/2',
        4: 'GigabitEthernet0/0/0/3',
        5: 'GigabitEthernet0/0/0/4',
        6: 'GigabitEthernet0/0/0/5',
        7: 'GigabitEthernet0/0/0/6',
    }
}