* Reorganized backends as sub-directories

        For issue #83

projects/ocarina-backends.gpr

@@ -37,10 +37,21 @@ project Ocarina.Backends is
    Build_Dir := Ocarina.Top_Build_Dir & "/backends";
 
    for Source_Dirs use (Src_Dir, Build_Dir,
+   Src_Dir & "/aadl_xml",
+   Src_Dir & "/alloy",
+   Src_Dir & "/arinc653_conf",
+   Src_Dir & "/ast_ada",
+   Src_Dir & "/ast_asn1",
+   Src_Dir & "/ast_c",
+   Src_Dir & "/ast_xml",
+   Src_Dir & "/bound-t",
    Src_Dir & "/cheddar",
+   Src_Dir & "/connection_matrix",
    Src_Dir & "/deos_conf",
+   Src_Dir & "/functions_matrix",
    Src_Dir & "/lnt",
    Src_Dir & "/mast",
+   Src_Dir & "/petri_nets",
    Src_Dir & "/po_hi_ada",
    Src_Dir & "/po_hi_c",
    Src_Dir & "/stats",