Rename Fortran parser infrastructure to drop "Depends" prefix

The parser can be re-used outside cmDependsFortran or the cmDepends
class hierarchy so drop the "Depends" from its name:

 rename 's/DependsFortran([A-Za-z0-9_])/Fortran$1/' Source/*.*
 sed -i 's/DependsFortran\([A-Za-z0-9_]\)/Fortran\1/g' Source/*.*
 sed -i 's/FortranInternals/DependsFortranInternals/g' Source/*.*

Also manually fix Source/CMakeLists.txt source file ordering.

Source/cmDependsFortran.h

@@ -9,13 +9,13 @@
   implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   See the License for more information.
 ============================================================================*/
-#ifndef cmDependsFortran_h
-#define cmDependsFortran_h
+#ifndef cmFortran_h
+#define cmFortran_h
 
 #include "cmDepends.h"
 
 class cmDependsFortranInternals;
-class cmDependsFortranSourceInfo;
+class cmFortranSourceInfo;
 
 /** \class cmDependsFortran
  * \brief Dependency scanner for Fortran object files.
@@ -71,7 +71,7 @@ protected:
 
   // Actually write the depenencies to the streams.
   bool WriteDependenciesReal(const char *obj,
-                             cmDependsFortranSourceInfo const& info,
+                             cmFortranSourceInfo const& info,
                              const char* mod_dir, const char* stamp_dir,
                              std::ostream& makeDepends,
                              std::ostream& internalDepends);