Write driver for SmartThings Button

[AndrewX192]

Add support for the SmartThings button, which also appears to have temperature reporting. Some information about the device:

D0923 04:27:05.799 e-6122              driver._ZB_Fallback] Starting driver [DriverId [name=_ZB_Fallback, version=Version [1.0]]]
D0923 04:27:05.799 e-6122              driver._ZB_Fallback] Driver [DriverId [name=_ZB_Fallback, version=Version [1.0]]] upgraded
W0923 04:27:05.799 e-6122 c.i.d.s.i.DefaultNameInitializer] No product: [null] found for population: [general] falling back to defaultName
D0923 04:27:05.808 e-6122 c.i.d.s.i.DefaultNameInitializer] Setting device name to New Device 2
D0923 04:27:05.808 e-6122              driver._ZB_Fallback] Zigbee Fallback Driver started.
D0923 04:27:05.810 e-6122              driver._ZB_Fallback] Attributes: {ZIGB:dcap=0, ZIGB:profiles=[{hubzbprofile:endpoints=[{hubzbendpoint:devver=0, hubzbendpoint:datecode=null, hubzbendpoint:pwr=3, hubzbendpoint:appver=17, hubzbendpoint:id=1, hubzbendpoint:manuf=Samjin, hubzbendpoint:zclver=-1, hubzbendpoint:ccls=[{hubzbcluster:id=3, hubzbcluster:server=false}, {hubzbcluster:id=25, hubzbcluster:server=false}], hubzbendpoint:hwver=0, hubzbendpoint:model=button, hubzbendpoint:stkver=-1, hubzbendpoint:devid=1026, hubzbendpoint:scls=[{hubzbcluster:id=0, hubzbcluster:server=true}, {hubzbcluster:id=32, hubzbcluster:server=true}, {hubzbcluster:id=1280, hubzbcluster:server=true}, {hubzbcluster:id=1, hubzbcluster:server=true}, {hubzbcluster:id=1026, hubzbcluster:server=true}, {hubzbcluster:id=3, hubzbcluster:server=true}, {hubzbcluster:id=2821, hubzbcluster:server=true}]}], hubzbprofile:id=260}], ZIGB:maxots=82, ZIGB:nwk=42721, ZIGB:eui64=2913150560251691217, ZIGB:maxbuf=82, ZIGB:pdesc=49424, ZIGB:nflags=16386, ZIGB:manufacturer=4673, ZIGB:model=button, ZIGB:smask=11264, ZIGB:maxits=82, ZIGB:vendor=Samjin, ZIGB:hub={eui64=3781220577624460}, ZIGB:mcap=128}
D0923 04:27:05.814 e-6122    c.i.c.m.kafka.KafkaMessageBus] Sending message [PlatformMessage [value=MessageBody [messageType=base:Added, attributes={base:caps=[dev, devadv, devconn, base], devadv:errors={pairing.failed=Driver could not be determined.}, devadv:driverversion=1.0, base:instances={}, devadv:drivername=_ZB_Fallback, dev:place=8f955ff0-ce66-4e82-a7ce-88f8727c0c96, base:id=2f2ed61c-527e-4c8a-a78a-e6981279fe0f, base:address=DRIV:dev:2f2ed61c-527e-4c8a-a78a-e6981279fe0f, dev:vendor=Unknown, base:tags=[], base:type=dev, devadv:protocol=ZIGB, devadv:degraded=false, base:images={}, devadv:protocolid=0UAIAQCXbSgAAAAAAAAAAAAAAAA=, devadv:degradedCode=none, dev:account=8feeeb4e-cd54-4860-9bde-9feb989332e8, dev:model=Unknown, dev:name=New Device 2, devadv:driverstate=unsupported, devadv:driverhash=LVuawU38Zc0XFVOuVaO74gcodw8, devadv:hubLocal=false, dev:devtypehint=dev, devadv:added=Mon Sep 23 04:27:05 UTC 2019}], [Message [source=DRIV:dev:2f2ed61c-527e-4c8a-a78a-e6981279fe0f,type=base:Added]]]]```