- CSE has to be done after dynamic relaxation rate adaption

- separate lbmpy module
- code generation for walberla
- isolated code to generate a listlbm update rule from collision rule

- these modifications have been made previously in the update rule
- update rule should only be about field access, not method modifications

- defined ordering of headers
- lbm split kernels produced different ordering of assignments due to
  usage of a set

- fix for field collection and reduction operations
- support for aligned fields in parallel data handling

- new time loop caches all kernel functions with their argument dict
  -> inner loop just calls C functions with cached kwargs

- cross check with normal lbm for channel flow with obstacle
- added correct pdf initialization
- 2x2 example with plot and detailed checks for index list

- extended pystencils
- Visualization for list LBM
- not yet working

- postprocessing functionality for lb phase field
- automatic detection of triple points with angle measurement

- updates in lbmpy benchmark
-> enables better numa placement

- update kida vortex benchmark

- support aligned load/stores
- nontemporal stores
- aligned memory allocation for arrays and temporary buffers

- flags can be force when setting boundaries, this is helpful for:
- setting up quantities (e.g. relaxation rate..) dependent on current
  flag configuration
- bit operation fix when pickling: function has to have the same name
  as the python object

- boundaries with same name have not been displayed correctly

- removed warnings
- added flake8 as CI target