ENH: add remote module for object oriented classification

Modules/Remote/SertitObject.remote.cmake

+#Contact: Rémi Cresson <remi.cresson@teledetection.fr>
+otb_fetch_module(SertitObject
+  "This module provides 2 applications dedicated to object-oriented image analysis.
+   
+   Aggregate application:
+
+The aim of this application is to merge the result of a segmentation with a
+pixel-based image classification in order to produce an object-oriented image
+classification. The input segmentation is a labeled image, typically the result
+provided by the OTB application LSMSSegmentation. The output is a vector dataset
+containing objects and the corresponding class in the attribute table. Connected
+regions belonging to the same class are merged. This application could be used
+at the last step of the LSMS pipeline in replacement of the application
+LSMSVectorization.  
+
+   ObjectsRadiometricStatistics application:
+
+This application computes radiometric and shape attributes on a vector dataset,
+using an image. The results are stored in the attribute table. Shape attributes
+are : number of pixels, flatness, roundness, elongation, perimeter. Radiometric
+attributes are for each band of the input image : mean, standard-deviation,
+median, variance, kurtosis, skewness. The result could be use to perform futher
+object-oriented image analysis.
+"
+  GIT_REPOSITORY https://github.com/sertit/SertitObject.git
+  GIT_TAG 90c369e9a197b3f83cb18e1d7bc594313fef63d5
+)