Double.java: Partial merge with Classpath

	* java/lang/Double.java: Partial merge with Classpath
	(TYPE): initialized through VMClassLoader.getPrimitiveClass()
	(value): made final
	(static): new static block to load native libary (not used in libgcj)
	(Double (String)): call parseDouble()
	(byteValue): removed, already defined in superclass Number
	(shortValue): likewise
	(valueOf (String)): call new Double(String) directly
	(compare (double,double)): new 1.4 method
	(compareTo (Double)): call new compare(double,double) method
	(initIDs): new private method (not used in libgcj)
	* java/lang/Float.java: Partial merge with Classpath
	(TYPE): initialized through VMClassLoader.getPrimitiveClass()
	(value): made final
	(static): new static block to load native libary (not used in libgcj)
	(Float (String)): call parseFloat()
	(byteValue): removed, already defined in superclass Number
	(shortValue): likewise
	(valueOf (String)): call new Float(String) directly
	(compare (float,float)): new 1.4 method
	(compareTo (Float)): call new compare(double,double) method

From-SVN: r46263