"atomic bomb" commit. Reorganized OpenCV directory structure

data/CMakeLists.txt

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+file(GLOB HAAR_CASCADES haarcascades/*.xml)
+file(GLOB LBP_CASCADES lbpcascades/*.xml)
+
+if(NOT WIN32)
+install(FILES ${HAAR_CASCADES} DESTINATION share/opencv/haarcascades COMPONENT main)
+install(FILES ${LBP_CASCADES} DESTINATION share/opencv/lbpcascades COMPONENT main)
+endif()

data/readme.txt

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+This folder contains various data that is used by cv libraries and/or demo applications.
+----------------------------------------------------------------------------------------
+
+haarcascades - the folder contains trained classifiers for detecting objects
+               of a particular type, e.g. faces (frontal, profile), pedestrians etc.
+               Some of the classifiers have a special license - please,
+               look into the files for details.