Bug 117149 Add additional datapoint markers
I would like to propose adding additional datapoint markers. Attached is a set of markers I would like supported.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/model/attribute/impl/AttributePackageImpl.java
this.getColorDefinition( ),
				null,
				"startColor", null, 1, 1, Gradient.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, !IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEReference( getGradient_EndColor( ),
				this.getColorDefinition( ),
				null,
				"endColor", null, 1, 1, Gradient.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_COMPOSITE, !IS_RESOLVE_PROXIES, !IS_UNSETTABLE, IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEAttribute( getGradient_Direction( ),
				theXMLTypePackage.getDouble( ),
				"direction", null, 1, 1, Gradient.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEAttribute( getGradient_Cyclic( ),
				theXMLTypePackage.getBoolean( ),
				"cyclic", null, 1, 1, Gradient.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEAttribute( getGradient_Transparency( ),
				theXMLTypePackage.getInt( ),
				"transparency", null, 1, 1, Gradient.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEClass( imageEClass,
				Image.class,
				"Image", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEAttribute( getImage_URL( ),
				theXMLTypePackage.getString( ),
				"uRL", null, 1, 1, Image.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, !IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEClass( insetsEClass,
				Insets.class,
				"Insets", !IS_ABSTRACT, !IS_INTERFACE, IS_GENERATED_INSTANCE_CLASS ); 
		initEAttribute( getInsets_Top( ),
				theXMLTypePackage.getDouble( ),
				"top", null, 1, 1, Insets.class, !IS_TRANSIENT, !IS_VOLATILE, IS_CHANGEABLE, IS_UNSETTABLE, !IS_ID, !IS_UNIQUE, !IS_DERIVED, IS_ORDERED ); 
		initEAttribute( getInsets_Left( ),
				theXMLTypePackage.getDouble( ),