Started plugin interface and began new global manager.
Finished plugin API prototype.
Project manager and create dialog rewrite. Comment out macro NGM_FUTURE_IS_HERE in Main.cpp for old behavior.
Updated resource model and deprecated functions.

Resource model has performance increase and sorting capabilities. The
Serializer class has also been updated to support main thread event
posting.
More model refactor and added resource tree menu.

Model should no longer crash under any circumstances and flags are done
on a per item basis. Resource tree displays context menu with limited
functionality. Resource::Resource has been renamed to Resource::Content
to decrease ambiguity.
More resource model fixes and tree menu updates.

CreateGroups flag now works for items, as well as renaming.
Memory leak fix and active project display fixed.

The active project proxy model now follows the active project, when it
is moved and removed. The resource view content menu now also changes
for projects.