Add blocks for WX module

[MatzElectronics]

Create blocks to interact with the upcoming WX IoT module

[Steph-Parallax]

If there's a configuration block, can we add a field for naming your module, ie setting the SSID that it broadcasts (also assuming the firmware supports that...)

[zfi]

@MatzElectronics, can you provide a list of blocks that will be in the first pass at this issue? Put it on Slack if it needs internal discussion.

[MatzElectronics]

Sure!

It will need at least:

• WX init (either with config options, or a seperate WX config block)
• WX set widget
• WX read widget
• WX send to widget

Since the WX is capable of serial passthrough, we may also want to consider blocks that are similar to the XBee blocks, but I'm not as keen on that right away.

[MatzElectronics]

The "Simple WX" blocks are currently in demo, but they require a file to be uploaded to the module. Please email me to request the file for testing. Also, please don't close this issue as I plan to add a set of Advanced WX blocks.

[MatzElectronics]

Advanced blocks are now also in Demo. Do not require a file upload to use. Will need to build blockly versions of the published C code examples for the WX module to test.

[Steph-Parallax]

Advanced blocks are in Production. Simple blocks still need work.