Bug 168172 Add the get() and set() functions of HideDetail parameter on IGroup
Add the get() and set() functions of HideDetail parameter on IGroup, and thus enable the hidedetail shifting on the Group through eventhandler.
engine/org.eclipse.birt.report.engine.tests/test/org/eclipse/birt/report/engine/api/script/element/ElementTest.java
private static final String TARGET_WINDOW = "targetWindow";
	private static final String REPORT_NAME = "reportName";
	private static final int Y1 = 40;
	private static final int X1 = 30;
	private static final int WIDTH1 = 20;
	private static final String IN = "in";
	private static final int HEIGHT1 = 10;
	private static final String GRID = "Grid";
	private static final String CONTENT_KEY = "contentKey";
	private static final String TEXT_CONTENT = "textContent";
	private static final String TEXT_ITEM = "TextItem";
	private static final String CAPTION_KEY = "captionKey";
	private static final String CAPTION = "caption";
	private static final String TABLE = "Table";
	private static final String WORD_SPACING = "21px";
	private static final String WINDOWS = "6";
	private static final String TEXT_INDENT = "20px";
	private static final String STRINGFORMAT = "stringformat";
	private static final String PADDING_TOP = "19pt";
	private static final String PADDING_RIGHT = "18pt";
	private static final String PADDING_LEFT = "17pt";
	private static final String PADDING_BOTTOM = "16pt";
	private static final String ORPHANS = "5";
	private static final String MASTER_PAGE = "masterPage";
	private static final String MARGIN_TOP = "15pt";
	private static final String MARGIN_RIGHT = "14pt";
	private static final String MARGIN_LEFT = "13pt";
	private static final String MARGIN_BOTTOM = "12pt";
	private static final String LINE_HEIGHT = "11pt";
	private static final String LETTER_SPACING = "10pt";