##### SUMMARY

Add field to ovirt_host_network to configure "Custom Properties" (from oVirt) 

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME

ovirt_host_network

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
This feature will be used to configure specific options during host's network setup (e.g. custom proprieties for FCoE)

```yaml
- ovirt_host_network:
    name: myhost
    interface: eth0-fcoe
    networks:
      - name: myvlan1
      - name: myvlan2
    custom_proprieties:
      - type: fcoe
        options: "enable=yes,dcb=no,auto_vlan=yes"
```
# look at ovirt_auth module to see how to reuse authentication:
# In all examples the durability of the configuration created is dependent on the 'save' option value:
# Create bond on eth0 and eth1 interface, and put 'myvlan' network on top of it and persist the new configuration:
- name: Bonds
  ovirt_host_network:
    name: myhost
    save: yes
    bond:
      name: bond0
      mode: 2
      interfaces:
        - eth1
        - eth2
    networks:
      - name: myvlan
        boot_protocol: static
        address: 1.2.3.4
        netmask: 255.255.255.0
        gateway: 1.2.3.4
        version: v4
# Create bond on eth1 and eth2 interface, specifying both mode and miimon:
- name: Bonds
  ovirt_host_network:
    name: myhost
    bond:
      name: bond0
      mode: 1
      options:
        miimon: 200
      interfaces: