0028050: Empty result of offset operation in mode complete join type intersection

1. BRepOffset_Inter3d::ConnexIntByInt
Create unique offset edge for each localized part shared between pair of faces of the input shape.

2. Test cases for the issue.

tests/offset/shape_type_i_c/XK3

@@ -0,0 +1,10 @@
+restore [locate_data_file bug26917_rm-104_input_3.brep] s
+
+OFFSETSHAPE 5 {} $calcul $type
+
+checkprops result -v 7.92115e+007 -s 7.499e+006
+
+unifysamedom result_unif result
+checknbshapes result_unif -face 2010 -shell 1
+
+checkview -display result_unif -2d -path ${imagedir}/${test_image}.png

tests/offset/shape_type_i_c/XK4

@@ -0,0 +1,21 @@
+restore [locate_data_file bug26917_rm-104_input_3_with_faces.brep] c
+
+# get the shape
+explode c
+copy c_1 s
+
+offsetparameter 1e-7 c i
+offsetload s 5
+
+foreach f [explode c_2 f] {
+  offsetonface $f 2
+}
+
+offsetperform result
+
+checkprops result -v 7.11183e+007 -s 7.46447e+006
+
+unifysamedom result_unif result
+checknbshapes result_unif -face 2010 -shell 1
+
+checkview -display result_unif -2d -path ${imagedir}/${test_image}.png

tests/offset/shape_type_i_c/XK5

@@ -0,0 +1,14 @@
+restore [locate_data_file bug26917_rm-104_input_3_trim1_with_faces.brep] c
+
+#get the shape
+explode c
+copy c_1 s
+
+OFFSETSHAPE 5 {} $calcul $type
+
+checkprops result -v 4.14439e+007 -s 3.99357e+006
+
+unifysamedom result_unif result
+checknbshapes result_unif -face 1067 -shell 1
+
+checkview -display result_unif -2d -path ${imagedir}/${test_image}.png

tests/offset/shape_type_i_c/XK6

@@ -0,0 +1,21 @@
+restore [locate_data_file bug26917_rm-104_input_3_trim1_with_faces.brep] c
+
+#get the shape
+explode c
+copy c_1 s
+
+offsetparameter 1e-7 c i
+offsetload s 5
+
+foreach f [explode c_2 f] {
+  offsetonface $f 2
+}
+
+offsetperform result
+
+checkprops result -v 3.7122e+007 -s 3.97038e+006
+
+unifysamedom result_unif result
+checknbshapes result_unif -face 1067 -shell 1
+
+checkview -display result_unif -2d -path ${imagedir}/${test_image}.png

tests/offset/shape_type_i_c/XK7

@@ -0,0 +1,14 @@
+restore [locate_data_file bug26917_rm-104_input_3_trim2_with_faces.brep] c
+
+#get the shape
+explode c
+copy c_1 s
+
+OFFSETSHAPE 5 {} $calcul $type
+
+checkprops result -v 3.79514e+007 -s 3.57457e+006
+
+unifysamedom result_unif result
+checknbshapes result_unif -face 941 -shell 1
+
+checkview -display result_unif -2d -path ${imagedir}/${test_image}.png

tests/offset/shape_type_i_c/XK8

@@ -0,0 +1,21 @@
+restore [locate_data_file bug26917_rm-104_input_3_trim2_with_faces.brep] c
+
+#get the shape
+explode c
+copy c_1 s
+
+offsetparameter 1e-7 c i
+offsetload s 5
+
+foreach f [explode c_2 f] {
+  offsetonface $f 2
+}
+
+offsetperform result
+
+checkprops result -v 3.413e+007 -s 3.55307e+006
+
+unifysamedom result_unif result
+checknbshapes result_unif -face 941 -shell 1
+
+checkview -display result_unif -2d -path ${imagedir}/${test_image}.png

tests/offset/shape_type_i_c/XK9

@@ -0,0 +1,10 @@
+restore [locate_data_file bug26917_rm-104_input_3_trim10.brep] s
+
+OFFSETSHAPE 5 {} $calcul $type
+
+checkprops result -v 220856 -s 32106.9
+
+unifysamedom result_unif result
+checknbshapes result_unif -face 13 -shell 1
+
+checkview -display result_unif -2d -path ${imagedir}/${test_image}.png