feature: add the ability for to ouput to the YDWG-02

[jncarter123]

The YDWG-02 uses a raw format described in http://www.yachtd.com/downloads/ydwg02.pdf

The format of messages sent from application to Device is the same, but without time
and direction field. Outgoing messages must end with . If the message
from application is accepted, passes filters and is transmitted to NMEA 2000,
it will be sent back to the application with ‘T’ direction.
For example, the application sends the following sentence to the Device:
19F51323 01 02
When this message is sent to the NMEA 2000 network, the Application receives
an answer like:
17:33:21.108 T 19F51323 01 02

Closes #49

[sbender9]

You need to support nmea2000JsonOut too. Most of the signalk-to-nmea2000 stuff uses it.

[jncarter123]

Thank you Scott, I've added the support for nmea2000JsonOut.

[jncarter123]

Scott,
It looks like the tests are failing for the YDWG due to the input time being set to 16:29:27.082 while the expected time is set to 21:29:27.082. Should I update these to match?

[sbender9]

Yes, you can change those timestamps

[jncarter123]

Thank you Scott for the comments. I've fixed each of those now.

[sbender9]

Thanks! Will test tomorrow. I have one in my lab now to test with. (They were awesome enough to send me a free unit!)

[sbender9]

Getting:

Apr  3 15:01:03 homepi signalk-server[4648]: ReferenceError: toYDWGRawFormat is not defined
Apr  3 15:01:03 homepi signalk-server[4648]:     at pgnToYdwgRawFormat (/usr/lib/node_modules/signalk-server/node_modules/@canboat/canboatjs/lib/toPgn.js:304:3)
Apr  3 15:01:03 homepi signalk-server[4648]:     at Ydwg02Stream.sendPGN (/usr/lib/node_modules/signalk-server/node_modules/@canboat/canboatjs/lib/ydwg02.js:80:15)
Apr  3 15:01:03 homepi signalk-server[4648]:     at Object.Ydwg02Stream.options.app.on (/usr/lib/node_modules/signalk-server/node_modules/@canboat/canboatjs/lib/ydwg02.js:60:12)
Apr  3 15:01:03 homepi signalk-server[4648]:     at emitOne (events.js:116:13)
Apr  3 15:01:03 homepi signalk-server[4648]:     at Object.emit (events.js:211:7)