UI: Icons update

New icons from Andrzej Ambroż (jendrzych)

  - Many tweaks to existing icons, such as folders and drives for the new file browser, as well as snapping
  - New icons for Checkmark, Transform Origins, Snap to Face Center, Zip Files (currently unused)

source/blender/editors/include/UI_icons.h

@@ -88,7 +88,7 @@ DEF_ICON(REMOVE)
 DEF_ICON(PANEL_CLOSE)
 DEF_ICON(COPY_ID)
 DEF_ICON(EYEDROPPER)
-DEF_ICON_BLANK(92)
+DEF_ICON(CHECKMARK)
 DEF_ICON(AUTO)
 DEF_ICON(CHECKBOX_DEHLT) /* de-Highlight - Checkbox OFF */
 DEF_ICON(CHECKBOX_HLT)   /* Highlight - Checkbox ON */
@@ -666,7 +666,7 @@ DEF_ICON(PARTICLE_PATH)
 
 /* EDITING */
 DEF_ICON_BLANK(669)
-DEF_ICON_BLANK(670)
+DEF_ICON(SNAP_FACE_CENTER)
 DEF_ICON(SNAP_PERPENDICULAR)
 DEF_ICON(SNAP_MIDPOINT)
 DEF_ICON(SNAP_OFF)
@@ -713,7 +713,7 @@ DEF_ICON(UV_SYNC_SELECT)
 DEF_ICON_BLANK(240)
 DEF_ICON_BLANK(241)
 DEF_ICON_BLANK(242)
-DEF_ICON_BLANK(243)
+DEF_ICON(TRANSFORM_ORIGINS)
 DEF_ICON(GIZMO)
 DEF_ICON(ORIENTATION_CURSOR)
 DEF_ICON(NORMALS_VERTEX)
@@ -823,7 +823,7 @@ DEF_ICON(BACK)
 DEF_ICON(FORWARD)
 DEF_ICON_BLANK(825)
 DEF_ICON_BLANK(826)
-DEF_ICON_BLANK(827)
+DEF_ICON(FILE_ARCHIVE)
 DEF_ICON(FILE_CACHE)
 DEF_ICON(FILE_VOLUME)
 DEF_ICON(FILE_3D)