Add support for HP ScanJet Pro 4500 fn1

[nilskohrs]

Version used: 1.8.0
Scanner model: HP ScanJet Pro 4500 fn1
Firmware version: 7.150

The scanner shows the entry in Scan to Computer, but when I click on it I also see all the scan options. Once I select to scan it, the screen on the scanner is stuck on "Scanning" until it times out and shows that there was an issue.

Log from the application:
node-hp-scan-to.log

I can see that the request for /Scan/Status returns a 404
I did however find the request /eSCL/ScannerStatus which seems to return the same data

<scan:ScannerStatus xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:xsd="http://www.w3.org/2001/XMLSchema"
    xmlns:io="http://www.hp.com/schemas/imaging/con/ledm/iomgmt/2008/11/30"
    xmlns:dd="http://www.hp.com/schemas/imaging/con/dictionaries/1.0/"
    xmlns:map="http://www.hp.com/schemas/imaging/con/ledm/resourcemap/2009/01/27"
    xmlns:dd2="http://www.hp.com/schemas/imaging/con/dictionaries/2008/10/10"
    xmlns:dd3="http://www.hp.com/schemas/imaging/con/dictionaries/2009/04/06"
    xmlns:ledm="http://www.hp.com/schemas/imaging/con/ledm/2007/09/21"
    xmlns:wifi="http://www.hp.com/schemas/imaging/con/wifi/2009/06/26"
    xmlns:pwg2="http://www.hp.com/schemas/imaging/con/pwg/sm/1.0/"
    xmlns:iocap="http://www.hp.com/schemas/imaging/con/ledm/iomgmtcap/2009/07/21"
    xmlns:prdcfgdyn2="http://www.hp.com/schemas/imaging/con/ledm/productconfigdyn/2009/03/16"
    xmlns:prdcfgdyn="http://www.hp.com/schemas/imaging/con/ledm/productconfigdyn/2007/11/05"
    xmlns:prdservicedyn="http://www.hp.com/schemas/imaging/con/ledm/productservicedyn/2009/01/10"
    xmlns:pscat="http://www.hp.com/schemas/imaging/con/ledm/productstatuscategories/2007/10/31"
    xmlns:ad="http://www.hp.com/schemas/imaging/con/ledm/alertdetails/2007/10/31"
    xmlns:psdyn="http://www.hp.com/schemas/imaging/con/ledm/productstatusdyn/2007/10/31"
    xmlns:locid="http://www.hp.com/schemas/imaging/con/ledm/localizationids/2007/10/31"
    xmlns:pudyn="http://www.hp.com/schemas/imaging/con/ledm/productusagedyn/2007/12/11"
    xmlns:ev="http://www.hp.com/schemas/imaging/con/ledm/events/2007/09/16"
    xmlns:scan="http://schemas.hp.com/imaging/escl/2011/05/03"
    xmlns:pwg="http://www.pwg.org/schemas/2010/12/sm"
    xmlns:httpdest="http://schemas.hp.com/imaging/httpdestination/2011/10/13"
    xmlns:dest="http://www.hp.com/imaging/con/destinations/2011/07/20"
    xmlns:wus="http://www.hp.com/schemas/imaging/con/ledm/walkupscan/2010/09/28"
    xmlns:scantype="http://www.hp.com/schemas/imaging/con/ledm/scantype/2008/03/17">
    <pwg:Version>2.5</pwg:Version>
    <pwg:State>Idle</pwg:State>
    <scan:AdfState>ScannerAdfEmpty</scan:AdfState>
</scan:ScannerStatus>

Additionally, this device supports adf, but when I start the application with adf-autoscan this warning comes up:

WARNING: The automatic scan feature is likely unsupported on this device, as its advertised capabilities do not include this feature.

[nilskohrs]

These are all the manifests of the scanner
manifests.zip

And here the result sniffing with wireshark when using the HP application to scan a blank page with the scan to computer feature
pcap.zip