Prerelease v0.2.4

Add the ability to use the first Brillouin zone

Prerelease v0.2.3

Move to use brille v0.5.0 plus minor changes

brille v0.5.0 introduces shared memory arrays for faster data transfer
between Python and C++ and is therefore desireable for use by this
interface.

Prerelease v0.2.2

Fix interpolation=False pure-Euphonic code path

The ability to easily compare brille interpolation with Euphonic
calculation has been restored under the new Euphonic API.
This functionality was not verified and contained bugs in its handling
of the `scattering_lengths` dictionary.

Prerelease v0.2.1

Bugfix to remove function timing decorators

BrillEu creation changes

• In order to support reading symmetry operations from CASTEP binary
  files it was useful to refactor how BrillEu objects are created.
• New class methods mirror those of euphonic.ForceConstants to read
  first the force constants and then the symmetry information from
  either a CASTEP binary file or a set of Phonopy files including the
  YAML summary file.
• A helper class method takes the ForceConstants object and either set
  of symmetry information plus the grid-creation keywords used
  previously.
• Along with these changes the dependency on Spglib has been removed.
  Attempting to use its determination of the Hall number proved too
  complicated since it could introduce basis transformations; instead
  either the symmetry operations (or their generators) or the correct
  Hall symbol (or Spglib Hall number) must be provided to create a
  BrillEu object. This means that if a caller function must also ensure
  that it defines Q in units of the same lattice as the ForceConstants
  derived crystal lattice.

Initial Release

This is the first pre-release of brilleu