tmux: add initial tmux configuration

stow/.config/tmux/tmux.conf

@@ -0,0 +1,22 @@
+# remap prefix from 'C-b' to 'C-a'
+unbind C-b
+set-option -g prefix C-a
+bind-key C-a send-prefix
+
+# vim keys
+bind h select-pane -L
+bind j select-pane -D
+bind k select-pane -U
+bind l select-pane -R
+
+# start ajacent terminals with same path
+bind c new-window -c "#{pane_current_path}"
+bind '"' split-window -c "#{pane_current_path}"
+bind % split-window -h -c "#{pane_current_path}"
+
+# set variables
+set -g mouse on
+set -g history-limit 100000
+
+set -g base-index 1
+setw -g pane-base-index 1