STreeCtrl设置节点文字颜色、选中节点文字颜色，选中节点所有父节点文字颜色

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如上图，可设置节点默认的文字颜色（黑），节点选中时文字颜色（绿），节点的所有父节点的文字颜色（红）

此效果为扩展后的效果，

/**
	* @brief Text color of selected items's parent.
	*/
	COLORREF m_crItemSelParentText;
	/**
	* @brief Flag indicating if lines are drawn between items.
	*/
		@@ -811,6 +816,7 @@ class SOUI_EXP STreeCtrl
	ATTR_COLOR(L"colorItemSelBkgnd", m_crItemSelBg, FALSE)
	ATTR_COLOR(L"colorItemText", m_crItemText, FALSE)
	ATTR_COLOR(L"colorItemSelText", m_crItemSelText, FALSE)
	ATTR_COLOR(L"colorItemSelParentText", m_crItemSelParentText, FALSE)
	ATTR_BOOL(L"hasLines", m_bHasLines, TRUE)
	SOUI_ATTRS_END()

    , m_crItemSelBg(RGBA(0, 0, 136, 255))
    , m_crItemText(RGBA(0, 0, 0, 255))
    , m_crItemSelText(RGBA(255, 255, 255, 255))
    , m_crItemSelParentText(RGBA(255, 255, 255, 255))
    , m_nVisibleItems(0)
    , m_nContentWidth(0)
    , m_bCheckBox(FALSE)

	if (m_hSelItem)
	{
	bool bFindParent = false;
	HSTREEITEM hParent = GetParentItem(m_hSelItem);
	while (hParent && !bFindParent)
	{
	if (hItem == hParent)
	{
	bFindParent = true;
	break;
	}
	hParent = GetParentItem(hParent);
	}
	if (CR_INVALID != m_crItemSelParentText && bFindParent)
	{
	bTextColorChanged = TRUE;
	crOldText = pRT->SetTextColor(m_crItemSelParentText);
	}
	}
	}
	if (pItem->bHasChildren && STVIMask_Toggle == (m_uItemMask & STVIMask_Toggle) && !m_bHasLines)