Adding mean-curvature example.

examples/mean-curvature/CMakeLists.txt

+set( tnl_heat_equation_SOURCES     
+     tnl-heat-equation.cpp
+     tnl-heat-equation-eoc.cpp )
+               
+IF( BUILD_CUDA )
+   CUDA_ADD_EXECUTABLE(tnl-heat-equation${debugExt} tnl-heat-equation.cu)
+   CUDA_ADD_EXECUTABLE(tnl-heat-equation-eoc-test${debugExt} tnl-heat-equation-eoc.cu)
+ELSE(  BUILD_CUDA )               
+   ADD_EXECUTABLE(tnl-heat-equation${debugExt} tnl-heat-equation.cpp)     
+   ADD_EXECUTABLE(tnl-heat-equation-eoc-test${debugExt} tnl-heat-equation-eoc.cpp)   
+ENDIF( BUILD_CUDA )
+
+target_link_libraries (tnl-heat-equation${debugExt} tnl${debugExt}-${tnlVersion} )
+target_link_libraries (tnl-heat-equation-eoc-test${debugExt} tnl${debugExt}-${tnlVersion} )
+
+INSTALL( TARGETS tnl-heat-equation${debugExt}
+                 tnl-heat-equation-eoc-test${debugExt}
+         RUNTIME DESTINATION bin
+         PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE )
+        
+INSTALL( FILES tnl-run-heat-equation-eoc-test
+               tnl-run-heat-equation
+         DESTINATION share/tnl-${tnlVersion}/examples/heat-equation )