terminal: Create module to consolidate term utils

Terminal application, a variety of shell configurations, terminal file
and session management all consolidated in one place.

terminal/.local/bin/tmux_pane_tree

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+# create a tree-style view
+# of all open tmux panes
+# and the command they are currently running
+
+tmux ls -F'#{session_id}' | while read -r s; do
+  S=$(tmux ls -F'#{session_id}#{session_name}: #{T:tree_mode_format}' | grep ^"$s")
+  session_info=${S##$s}
+  session_name=$(echo "$session_info" | cut -d ':' -f 1)
+  if [[ -n "$1" ]] && [[ "$1" == "$session_name" ]]; then
+    echo -e "\033[1;34m$session_info\033[0m"
+    tmux lsw -t"$s" -F'#{window_id}' | while read -r w; do
+      W=$(tmux lsw -t"$s" -F'#{window_id}#{T:tree_mode_format} - #{pane_current_command}' | grep ^"$w")
+      H=$(tmux lsw -t"$s" -F'#{window_id}#H' | grep ^"$w")
+      echo "  ﬌ ${W##$w}" | sed "s/\"${H##$w}\" //"
+    done
+  else
+    echo -e "\033[1m$session_info\033[0m"
+  fi
+done