Release Candidate for OpenPBR v1.0

Added

• Add coat darkening and saturation effects by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/162
• Define Oren-Nayar lobe explicitly as EON model (i.e. energy-compensated Fujii) by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/174
• Specify the anisotropy direction by @virtualzavie in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/170
• Coat roughening convolution formula by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/172
• Add a discussion/solution of the coat "spurious TIR" issue by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/166
• Add white furnace testing section by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/192

Changed

• Thin-film improvements by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/167
• Remove Future work notes and left over comments by @virtualzavie in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/181
• Rework readme links by @virtualzavie in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/182
• Remove conclusion section by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/186
• Upgrade reference implementation to 1.39 by @jstone-lucasfilm in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/188
• Layer diagram improvements by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/189
• Update the coat_darkening parameter to default to 1 by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/193
• Initial cleanup for 1.0. by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/191
• Slightly shift TOC closer to teaser image. by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/194
• Update contributors list. by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/195
• Update specification and reference to v0.5 by @jstone-lucasfilm in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/196

Fixed

• Fix uifolder name for subsurface weight by @fpliu in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/184
• Fix IOR schematic figure in thin-film section by @portsmouth in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/185

New Contributors

• @fpliu made their first contribution in https://github.com/AcademySoftwareFoundation/OpenPBR/pull/184

Full Changelog: https://github.com/AcademySoftwareFoundation/OpenPBR/compare/v0.4...v0.5