0028964: Draw - need to have command to apply ShapeFix_FixSmallFace tool

DRAW command fixsmallfaces is added to fix (remove) small faces in the shape.
Command OCC22586 is removed (replaced by fixsmallfaces).

Test bug28112_2 using that command is added for the two last shapes in issue #28112; test bug28112 is renamed to bug28112_1.
Test bug22586 is changed to use the new command.

tests/bugs/modalg_7/bug28112_2

@@ -0,0 +1,21 @@
+puts "# ================================================================="
+puts "# 0028112:  E x c e p t i o n  during offset computation"
+puts "# ================================================================="
+
+puts ""
+puts "# Fixing small faces on first shape..."
+restore [locate_data_file bug28112_1.brep] shape1
+fixsmallfaces fix1 shape1 -1
+checknbshapes fix1 -face 4
+
+puts ""
+puts "# Fixing small faces on second shape..."
+restore [locate_data_file bug28112_2.brep] shape2
+fixsmallfaces fix2 shape2 -1
+checknbshapes fix2 -face 4
+
+puts ""
+puts "# Trying offset on both shapes to ensure that it works after removal"
+puts "# of small faces"
+offsetshapesimple res1 fix1 10.
+offsetshapesimple res2 fix2 10.