Add Spider to Ladybug Tools

@ladybug-tools/spiders

Well, it looks like Spider is starting to spin a web. gbXML Viewer Basic is likeley to be in the next OpenStudio update (2.6.1).

Open Studio gbXML Viewer source code

• https://github.com/NREL/OpenStudio/tree/develop/openstudiocore/src/openstudio_lib/library
• https://github.com/NREL/OpenStudio/blob/develop/openstudiocore/src/openstudio_lib/library/embeddable_gbxml_editor.html

It probably would make sense to think about adding Spider to https://www.ladybug.tools/. Several edits seem to make sense:

1. Adding logo and title here:
   

@chriswmackey: you created a nice logo for the gbXML seminar. Could you make it available for reuse?

2. Adding logo to the to network diagram just below the logos. Note I am working (slowly) on 3D interactive 3D version of this diagram.

3. Updating text to 'What is Ladybug Tools?'
   Note this text appears on the home page and also on the GitHub read me: https://github.com/ladybug-tools/ladybug-tools.github.io/blob/master/README.md. I will take a stab at an update in a pull request in the coming days

4. Adding NREL, Buro Happold and Perkins Will logos to the list of users. Maybe also gbXML.org?

BTW, It's coming up to the first anniversary of IBPSA2017. As invited by @mostaphaRoudsari, @chriswmackey and @mdahlhausen, this is where I first heard of this 'gbXML' thing and which led me to suggest to @bwelle to think about gbXML to as a file format for the Perkins Will SPEED project. Which @mdengusiak soon jumped on and, well, the web started to be woven.

Fingers crossed we can help deliver what NREL OpenStudio users need.

💯

Start by inspecting the Ladybug Tools homepage and the linked README, then locate the page elements shown in the issue, including the title area, network diagram, and user logos. The work is done when Spider is represented with its logo and title, the requested text and user list are updated, and the changes are consistent across the homepage and README.