add tmux plugin copycat

.tmux/copycat/scripts/copycat_mode_start.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env bash
+
+CURRENT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+SUPPORTED_VERSION="1.9"
+
+PATTERN="$1"
+
+supported_tmux_version_ok() {
+	$CURRENT_DIR/check_tmux_version.sh "$SUPPORTED_VERSION"
+}
+
+main() {
+	local pattern="$1"
+	if supported_tmux_version_ok; then
+		$CURRENT_DIR/copycat_generate_results.sh "$pattern" # will `exit 0` if no results
+		$CURRENT_DIR/copycat_mode_bindings.sh
+		$CURRENT_DIR/copycat_jump.sh 'next'
+	fi
+}
+main "$PATTERN"