Add data structure for feature groups

[quincylvania]

Currently, iD has a mechanism for matching a feature to one and only one preset. It's straightforward for new contributors to add new presets since they are easily defined in JSON.

However, a single preset does not fully define a feature. Features can be sorted into multiple "groups" based on their tags and geometry. iD now defines these variously in code, for example:

• Toggle-able Map Data layers
• Routable features
• Implied one-way features

We should move these to JSON files as part of #6483 and #5326.

Each group can have rules that define what features to include and qualities that specify what the features have in common. iD can then match each feature into a number of groups and adjust behaviors based on them.