Cleaned up .h files by removing unnecessarly #include statements.
The less the number of include statements, the faster the program will
compile, which is an issue when dealing with template-based code.
I implemented FPFH together with persistent features across scales to reduce the number of points to compare.
Code compiles and runs. Do not know how well. We need some timings. I am working with 30k points (a reduced
version of the full file.)
Four levels of scaling for persistence computations. Reduction from 30k to 8k features.
using FPHF.