Network: Do not default to Wi-Fi icons in the Interfaces preflet.

At least TUN/TAP don't appear with the "wireless" icon anymore.

Network preferences: Use BControlLook::ComposeIconSize().

Network preference: Fix icon initialization and destruction

- Add more check for icon initialization in _PopulateBitmaps().
- Delete icons in destructor.

Change-Id: Id49861af3df66dcd670524466920a37e5b5d8c22
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3658
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

preferences/network: Add modem icon for dial-up

preferences/network: Fix status labels for stateful connections

preferences/network: Add dedicated VPN icon

network preflet: Add B_NETWORK_INTERFACE_TYPE_DIAL_UP.

network preflet: Make InterfaceListItem dumber

* Allows us to use InterfaceListItem for non-physical
interface things (like a VPN connection)

network preflet: Fix interface icon spacing

Network: fixed uninitialized members.

* CIDs 1251073, 1292681, 1292686, and 1292687 -- all irrelevant, though.

Network: interface list item now used BControlLook spacing.

* Instead of hard-coded values.

Network: added interface list item.

* Added BNetworkInterfaceListItem that can be used by interface protocol
add-ons to represent their functionality in the list view.
* It will automatically update itself on changes, and will show the
specified label, and address, if any, as well as indicate whether or
not the family has been disabled (which doesn't work perfectly yet,
as IFF_AUTO_CONFIGURED is on the interface level).
* Therefore, the interface list item will no longer show the address,
but the type of the device instead.
* Introduced the BNetworkConfigurationListener interface that is used
to broadcast network updates to.

Network: also notify interface list items

* When the network configuration changes.

Network: show interface addresses in list item.

* No family prefix yet.

Network: fixed broken item frame retrieval.

* Completely superfluous and expensive for BListView items, and just
wrong for BOutlineListView items.
* Also increased the width of the item, as we must take the tree offset
into account ourselves (really, great API).

Network: integrated former hardware view from add-on.

* The interfaces logic is within the main application, so is the
new interface view.
* Disabling/renegotiating does not work yet.
* Reveals a bug in some interface code; when you click on an ethernet
device first, there is no place for the wireless menu. When you then
press on a wireless device, it crashes in BMenuField code.
In the other direction, there is then an empty space.
* Fixed list item width reporting.

Network: Removed unused includes.

Network: WIP of redesign.

* Fletched out new add-on API.
* Moved InterfaceListItem from the interfaces add-on into the
application.
* Renamed NetworkSetup* to Network* respectively NetworkSettings*.

Network: fixed uninitialized members.

* CIDs 1251073, 1292681, 1292686, and 1292687 -- all irrelevant, though.

Network: interface list item now used BControlLook spacing.

* Instead of hard-coded values.

Network: added interface list item.

* Added BNetworkInterfaceListItem that can be used by interface protocol
add-ons to represent their functionality in the list view.
* It will automatically update itself on changes, and will show the
specified label, and address, if any, as well as indicate whether or
not the family has been disabled (which doesn't work perfectly yet,
as IFF_AUTO_CONFIGURED is on the interface level).
* Therefore, the interface list item will no longer show the address,
but the type of the device instead.
* Introduced the BNetworkConfigurationListener interface that is used
to broadcast network updates to.

Network: also notify interface list items

* When the network configuration changes.

Network: show interface addresses in list item.

* No family prefix yet.

Network: fixed broken item frame retrieval.

* Completely superfluous and expensive for BListView items, and just
wrong for BOutlineListView items.
* Also increased the width of the item, as we must take the tree offset
into account ourselves (really, great API).

Network: integrated former hardware view from add-on.

* The interfaces logic is within the main application, so is the
new interface view.
* Disabling/renegotiating does not work yet.
* Reveals a bug in some interface code; when you click on an ethernet
device first, there is no place for the wireless menu. When you then
press on a wireless device, it crashes in BMenuField code.
In the other direction, there is then an empty space.
* Fixed list item width reporting.

Network: Removed unused includes.

Network: WIP of redesign.

* Fletched out new add-on API.
* Moved InterfaceListItem from the interfaces add-on into the
application.
* Renamed NetworkSetup* to Network* respectively NetworkSettings*.