Add spec for the mct-representation; separate out gesture
attachment to improve testability and increase cohesion.
Part of ongoing initial authorship of representation
component, WTD-521.
Add spec for ContextMenuGesture, which exposes a menu
of applicable actions for objects when it is performed.
One of the built-in gestures supported by the
representation component, WTD-521.
Add general structure for Open MCT Web, including
top-level and second-level directory structure.
README files are included to explain the role of
each directory; markdown is used to allow for
richer display when viewer support is present.
WTD-519.
