allow grouping of apps/pods/services/controllers by kind

[jstrachan]

e.g. we may want to tag things with categories like:

• continuous improvement
• social
• availability
• automation
• transparency

Then rather than seeing a flat list of apps; have them grouped into these 5 sections.

i.e. picking a label to use to do a kinda of 'group by' view that folks often do with databases. Whether tabular or making N tables or using separate columns for each pod/rc/app etc

[gashcrumb]

+1 for grouping, once you get enough stuff those lists are too long :-)