fixes SAGA 2.1.2 merge raster layers module as it changed name and pa…

…rameters

python/plugins/processing/algs/saga/description/2.1_Mosaicking.txt

@@ -0,0 +1,14 @@
+Mosaick raster layers|Mosaicking
+grid_tools
+AllowUnmatching
+ParameterMultipleInput|GRIDS|Input Grids|3|False
+ParameterMultipleInput|GRID_GRID|Grid (Optional Input)|3|True
+ParameterSelection|TYPE|Preferred data storage type|[0] 1 bit;[1] 1 byte unsigned integer;[2] 1 byte signed integer;[3] 2 byte unsigned integer;[4] 2 byte signed integer;[5] 4 byte unsigned integer;[6] 4 byte signed integer;[7] 4 byte floating point;[8] 8 byte floating point|7
+ParameterSelection|INTERPOL|Interpolation|[0] Nearest Neighbor;[1] Bilinear Interpolation;[2] Inverse Distance Interpolation;[3] Bicubic Spline Interpolation;[4] B-Spline Interpolation|0
+ParameterSelection|OVERLAP|Overlapping Areas|[0] first;[1] last;[2] minimum;[3] maximum;[4] mean;[5] blend boundary;[6] feathering|1
+ParameterNumber|BLEND_DIST|Blending Distance|0.000000|999999.000000|10.000000
+ParameterSelection|MATCH|Match|[0] none;[1] regression|0
+ParameterSelection|TARGET|Target Grid|[0] user defined;[1] existing grid or grid system|0
+ParameterSelection|USER_FIT|Fit|[0] nodes;[1] cells|0
+Extent USER_XMIN USER_XMAX USER_YMIN USER_YMAX
+OutputRaster|USER_GRID|Mosaicked Grid