biocore / emperor / 1467

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Fast Animation (#724)

* Fast animation by splitting tubes into static and dynamic portions such that only the dynamic portions require update each frame.

animate.js - now tracks the previous frame.  Should allow rewind in the future.
animations-controller.js - now treats static and dynamic tube segments separately
draw.js - Added method for creation of TubeBufferGeometry object for static tube segments.
		added method for updating draw range of TubeBufferGeometry
sceneplotview3d.js - now adds both static and dynamic tubes to the scene.
trajectory.js - New function to grab an interpolated tube segment / last two points of a trajectory for the current frame
view.js - split tubes into static and dynamic

* Updated tests for split of tubes field

* Fix for potential divide by zero

* Updated test for trajectory to check dynamic tube section equivalence

* Updated comment for jsdoc

* Moved variable declaration into for loop.  Added utility method to view to retrieve all tubes

* Added test for interpolating trajectories with duplicate points

* Removed drawTrajectoryLine

* Used preferred Material property setting through constructor.  Removed the Blah.

* Updated material constructor parameters for consistency.  Added dispose functions for each tube type.  Moving forward, project should decide if it wants to dispose all meshes the same, or each type of mesh differently, difference is whether or not materials and geometries should have potential to be reused.

* animations-controller now disposes of tube objects when removing them from the scene.  Draw no longer sets matrixAutoUpdate property on tube materials -- matrixAutoUpdate is a property of meshes.  It's unclear what was intended by setting it previously

* Ran fixjsstyle

* Manually fixed lines over 80 characters

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