Add highlighter support

A new config file for highlighter and a zsh alias to make it behave as
expected when invoked, even if the alias is over-reaching a bit.

.highlight/themes/base16.theme

@@ -0,0 +1,25 @@
+--%%base16_template: highlight##default %%
+Description = "Base16 "
+
+Default = { Colour = "#f0f0f0" }
+Canvas = { Colour="#000000" }
+Number = { Colour="#f7941d" }
+Escape = { Colour="#c0c0c0" , Italic=true}
+String = { Colour="#8dc73f" }
+BlockComment = { Colour="#606060" }
+StringPreProc = String
+LineComment   = BlockComment
+Operator      = { Colour="#f0f0f0" }
+LineNum      = { Color="#606060" }
+PreProcessor      = { Colour="#a16946" }
+Interpolation  = Escape
+
+Keywords = {
+  { Colour="#ed008c", Bold=true},
+  { Colour="#f7c61d"},
+  { Colour="#3f7fff"},
+  { Colour="#f7c61d"},
+  { Colour="#f7c61d" }
+}
+
+-- %%base16_template_end%%

.zshrc

@@ -48,6 +48,7 @@ esac
 alias ct="clear && task"
 alias tt="taskwarrior-tui"
 alias grep='grep -EIs --color=auto --exclude-dir=.git'
+alias highlight='highlight --out-format=xterm256 --style=base16'
 
 HISTFILE=~/.zsh_history
 HISTSIZE=10000