Phase 1 of Refactoring

This release marks a step toward refactoring pyfab into independent components that handle video processing, hardware automation and particle tracking with a pluggable architecture.

Bug fix

Corrected bug in QDVRWidget that referred to incorrect object for dimensions.
Added running average for FPS calculation.

Basic pyfab/jansen functionality

Pyfab is a GUI for interacting with a holographic fabrication and characterization
instrument. It provides the user with a real-time holographic display of the instrument's
sample volume and allows the user to project holographic optical traps into the volume
with real-time 3D control.

Milestones to v0.8:

• Memory profiling to ensure clean shutdown
• Rotate groups of traps in 2D
• Support for structured traps, such as helical modes

Milestones to v0.9

• Geometric calibration through introspection.
• Aberration calibration and correction.
• Scripted tasks

Milestones to v1.0

• Automated particle acquisition
• Scripted assembly