FieldClassMapRegister

Adds a creation method to the class map package.

FieldClassMapRegister(char *name, char *path, char *func_name, int (*create_func)(FieldClassMap))

Not Collective

	name	- The name of a new user-defined creation routine
	path	- The path (either absolute or relative) of the library containing this routine
	func_name	- The name of routine to create method context
	create_func	- The creation routine itself

FieldClassMapRegister() may be called multiple times to add several user-defined mapes.

If dynamic libraries are used, then the fourth input argument (create_func) is ignored.

  FieldClassMapRegister("my_map", /home/username/my_lib/lib/libO/solaris/mylib.a, "MyFunc", MyFunc);

Then, your map type can be chosen with the procedural interface via

    FieldClassMapSetType(vec, "my_map")

or at runtime via the option

    -class_map_type my_map

$PETSC_ARCH and $BOPT occuring in pathname will be replaced with appropriate values.

class, field class, class map, register