hp_color_laser_mfp_178_179 (MFP 178nwg) missing from models.dat

[Zoé]

The printer HP Color Laser MFP 178nwg is missing from models.dat and thus can't be used at all.

```
$ hp-makeuri --logging=debug 192.168.0.36

HP Linux Imaging and Printing System (ver. 3.21.4)
Device URI Creation Utility ver. 5.0

Copyright (c) 2001-18 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

hp-makeuri[8537]: debug: Cache miss: hp_color_laser_mfp_178_179
hp-makeuri[8537]: debug: Reading file: /usr/share/hplip/data/models/models.dat
hp-makeuri[8537]: debug: Searching for section [hp_color_laser_mfp_178_179] in file /usr/share/hplip/data/models/models.dat
error: Device not found
```

as a workaround, I manually created an entry in the aforementioned file. please don't use it since I have no idea what the correct values are. I can, however, print with this:

```
[hp_color_laser_mfp_178_179]
align-type=0
clean-type=0
color-cal-type=0
copy-type=0
embedded-server-type=1
fax-type=7
fw-download=False
icon=hp_color_laserjet_cp2025.png
io-mfp-mode=1
io-mode=1
io-support=14
job-storage=0
linefeed-cal-type=0
model1=Terrible HP Color Laser MFP 178nwg
monitor-type=0
panel-check-type=0
pcard-type=0
plugin=0
plugin-reason=65
power-settings=0
pq-diag-type=0
r-type=0
r0-agent1-kind=4
r0-agent1-sku=CE311A
r0-agent1-type=4
r0-agent2-kind=4
r0-agent2-sku=CE310A
r0-agent2-type=1
r0-agent3-kind=4
r0-agent3-sku=CE313A
r0-agent3-type=5
r0-agent4-kind=4
r0-agent4-sku=CE312A
r0-agent4-type=6
scan-src=3
scan-type=5
status-battery-check=0
status-dynamic-counters=0
status-type=10
support-released=True
support-subtype=219b2b
support-type=2
support-ver=3.13.11
tech-class=Hbpl1
family-class=PCLM-COLOR
tech-subclass=Color
tech-type=4
usb-pid=332a
usb-vid=3f0
wifi-config=3
```

[brian_p (claremont102)]

The HP Color Laser MFP 178nwg is not supported by HPLIP. It
is an SPL device.

https://wiki.debian.org/CUPSPrintQueues#hpuld