integrated 3d_point_cloud to pcloud
Revert "integrated 3d_point_cloud to pcloud"

This reverts commit 15e65c130fb6ac2414a7d7d8e0b3485edd43657e.
Revert "Revert "integrated 3d_point_cloud to pcloud""

This reverts commit 2f729a0a59c18810cbc22620664324d56b54578b.
Merge branch 'newbranch'

Conflicts:
	online_clustering/data_proc/src/data_proc.cpp
	online_clustering/hmp/src/omp.cpp
	online_clustering/test/exe/hmp/CoSaMP_OMP/cell_phone_1_1_6_crop.png
	online_clustering/test/exe/hmp/desk_1_1.png
	online_clustering/test/exe/hmp/rgbdevel_fulldic_1st_layer_5x5_crop.dat
	online_clustering/test/exe/omp_test
	online_clustering/test/hmp/hmp_test.cpp