EXT-7596 FIXED Reworked filters 'My Appearance' and 'Add Wearaples' panel corresponding with spec

- Changed label and font of filter's label in 'Add Wearables' panel
- Added magnifier icon to the filters of 'My Appearance' and 'Add Wearables' panels

Reviewed by Mike Antipov at https://codereview.productengine.com/secondlife/r/515/

--HG--
branch : product-engine

indra/newview/skins/default/xui/en/panel_outfit_edit.xml

@@ -256,15 +256,14 @@ It is calculated as border_size + 2*UIResizeBarOverlap
 		             background_image="TextField_Search_Off"
 		             enabled="true"
 		             follows="left|right|top"
-		             font="SansSerif"
-		             label="Filter"
+		             label="Filter Inventory Wearables"
 		             layout="topleft"
 		             left="5"
 		             width="290"
 		             height="25"
 		             name="look_item_filter"
+		             search_button_visible="true"
 		             text_color="black"
-		             text_pad_left="25"
 		             visible="true"/>
                     
                 </layout_panel>

indra/newview/skins/default/xui/en/sidepanel_appearance.xml

@@ -111,6 +111,7 @@ width="333">
    label="Filter Outfits"
    max_length="300"
    name="Filter"
+   search_button_visible="true"
    top_pad="10"
    width="303" />
    <panel