v0.5.1-alpha

What's Changed

• Output coupling by @SCRobarts in #1
• Pulse duration rework by @SCRobarts in #2
• Plotting by @SCRobarts in #3
• Refractive index test by @SCRobarts in #4
• Output Coupling implementation and fixes by @SCRobarts in #7
• Waveguide by @SCRobarts in #8
• Update working waveguide branch by @SCRobarts in #9
• Waveguide and Fanout Implementation by @SCRobarts in #10

Full Changelog: v0.1.2-alpha...v0.5.0-alpha