Add InitFailedException and UnorganizedPointCloudException
Add InitFailedException and UnorganizedPointCloudException

While there make all the exceptions exportable
Add PCL_EXCEPTION helper macro to throw exceptions with line nmber and 
file name set by the compiler.



git-svn-id: 1af002208e930b4d920e7c2b948d1e98a012c795@3227 a9d63959-f2ad-4865-b262-bf0e56cfafb6

psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn,psoetens/pcl-svn