updating/modifying/assigning vlans, spaces, fabrics, subnets doesn't allow specifying names and lock to ID"s

I did this for storage ao there is some good examples on how to do this both at the model level and form level. Lets try to use the same patterns there so its similar and easier to maintain.

In the branch I have proposed, you can now specify queries to locate these objects. For example:

=== Fabrics ===
fabric := <
    <fabric-id> | <fabric-name> |
    name:<fabric-name> |
    class:<fabric-class>
>

=== Interfaces ===
interface := <
    <interface-id> | <ip-address[/prefixlen]> | <interface-name>
    fabric:<fabric> |
    fabric_class:<fabric.class> |
    ip:<ip-address> |
    mode:<unconfigured> |
    name:<interface-name> |
    hostname:<attached-node-hostname> |
    subnet:<subnet> |
    subnet_cidr:<subnet.cidr> |
    type:<physical|bond|vlan|alias|unknown> |
    vlan:<vlan> |
    vid:<vlan.vid>
>

=== Spaces ===
space := <
    <space-id> | <space-name> |
    name:<space-name> |
    subnet:<subnet>
>

=== Subnets ===
subnet := <
    <subnet-id> | <subnet-cidr> | <subnet-name> |
    cidr:<subnet-cidr> |
    fabric:<fabric> |
    id:<subnet-id> |
    interface: <interface> |
    ip:<ip-address> |
    name:<subnet-name> |
    space:<space> |
    vid:<vlan.vid> |
    vlan:<vlan>
>

=== VLANs ===
vlan := <
    <vlan-id> | <vlan-name> |
    fabric:<fabric> |
    subnet:<subnet> |
    vid:<vlan-vid> |
>

Specifiers can be chained:
    space=vlan:vid:5

Specifiers can be comma-delimited, in which case they will be ANDed together:
    space=vlan:vid:5,subnet:fabric:class:10Gbps