adds regular 2d rotated grids to interface reference documentation

doc/src/reference.dox

@@ -223,6 +223,7 @@
         <li> \ref yac_cdef_grid_unstruct_edge
         <li> \ref yac_cdef_grid_unstruct_edge_ll
         <li> \ref yac_cdef_grid_cloud
+        <li> \ref yac_cdef_grid_reg2d_rot
     <td style="vertical-align:top;width:33%">
       <ul style="margin:0px">
         <li> \ref yac::yac_fdef_grid "yac_fdef_grid (*)"
@@ -233,12 +234,14 @@
         <li> \ref yac.UnstructuredGrid
         <li> \ref yac.UnstructuredGridEdge
         <li> \ref yac.CloudGrid
+        <li> \ref yac.Reg2dRotGrid
   <tr>
     <td style="vertical-align:top;width:33%">
       <ul style="margin:0px">
         <li> \ref yac_cdef_points_reg2d
         <li> \ref yac_cdef_points_curve2d
         <li> \ref yac_cdef_points_unstruct
+        <li> \ref yac_cdef_points_reg2d_rot
     <td style="vertical-align:top;width:33%">
       <ul style="margin:0px">
         <li> \ref yac::yac_fdef_points "yac_fdef_points (*)"