Remove process files as the demos will create them from scratch
Add notes of how to make invoice process executable
Remove process
Add ADONIS model of step 1
Add camunda model of step 2
Add technical attributes
Add demo notes
Improve invoice demo notes
Improve demo notes
Add final version
Added demo results
Final result
Added demo results
Renamed result files
Added intermendiate results
Renamed results
Added more results
Revert "Added demo results"

This reverts commit 8dace0fc79af6debcb60be7a8791ae2c16e5c1ff.
Remove examples not used by BPMN MIWG
Adapted README.md file