Bug 152828 Add the projectFolder property on module
When user doesn't set the resource folder path in designer, there should be a default working path for Birt to manage the report design and find the related resources. A new property should be added on Module: name: projectFolder type:URL This property only can be given from the open design method from session but should not be set after the module initialized. Concern about the backward compatiblity issue, a new method will be added. Open design with a config argument.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/SessionHandle.java
{
		
		
		session.setResourceLocator( locator );
	}
	/**
	 * Returns the installed resource locator.
	 * 
	 * @return the resource locator.
	 */
	public IResourceLocator getResourceLocator( )
	{
		return session.getResourceLocator( );
	}
	/**
	 * Returns the locale of the current session.
	 * 
	 * @return the locale of the current session
	 * @deprecated to use ICU4J, replaced by: public ULocale getLocale()
	 */
	public Locale getLocale( )
	{
		return Locale.getDefault( );
	}
	/**
	 * Returns the locale of the current session.
	 * 
	 * @return the locale of the current session, the return value is of
	 *         <code>ULocale</code>.
	 */