add fisher plugins install script

bin/linux/fisher_plugins.fish

@@ -0,0 +1,20 @@
+#!/bin/fish
+
+#==========================================================
+# fisher plugin install
+#==========================================================
+
+# check fisher existence
+if ! type fisher &>/dev/null
+	echo "fisher does not exist."
+	echo "Please install fisher."
+	return 1
+end
+
+fisher update
+
+# installing packages
+fisher install edc/bass
+#fisher install jethrokuan/z
+fisher install patrickf1/fzf.fish
+