add tick_direction to supported arguments

src/backends/glvisualize.jl

@@ -41,6 +41,7 @@ const _glvisualize_attr = merge_with_base_supported([
     :dpi,
     :hover,
     :framestyle,
+    :tick_direction,
 ])
 const _glvisualize_seriestype = [
     :path, :shape,

src/backends/gr.jl

@@ -33,6 +33,7 @@ const _gr_attr = merge_with_base_supported([
     :bar_width,
     :arrow,
     :framestyle,
+    :tick_direction,
 ])
 const _gr_seriestype = [
     :path, :scatter,

src/backends/plotly.jl

@@ -34,6 +34,7 @@ const _plotly_attr = merge_with_base_supported([
     :bar_width,
     :clims,
     :framestyle,
+    :tick_direction,
   ])
 
 const _plotly_seriestype = [

src/backends/pyplot.jl

@@ -34,6 +34,7 @@ const _pyplot_attr = merge_with_base_supported([
     :colorbar_title,
     :stride,
     :framestyle,
+    :tick_direction,
   ])
 const _pyplot_seriestype = [
         :path, :steppre, :steppost, :shape,