Build Conda Packages for Mac

[kwabenantim]

Description
The conda packages are currently only available for Linux. We would like to build new ones for Mac.

To Do

• Custom conda XSD packages #29
• Add PyChaste Support for VTK 8 #23
• Support conda-forge vtk binaries #27
• Create a conda-forge XSD package

[kwabenantim]

At present, this requires creating a conda XSD package for Mac -- ideally we should add this on conda-forge to make dependency management simpler.

However, it has been suggested that XSD should be removed as a Chaste dependency in future code modernisation work, which would make this unnecessary.