added harpoon keybinds, start fzf_harpoon, ignore some ftplugin files

lua/harpoon_fzf/init.lua

@@ -0,0 +1,19 @@
+local M = {}
+
+-- Grabbed from harpoon code
+function M.get_marked_files()
+    local Marked = require("harpoon.mark")
+    local contents = {}
+
+    for idx = 1, Marked.get_length() do
+        local file = Marked.get_marked_file_name(idx)
+        if file == "" then
+            file = "(empty)"
+        end
+        contents[idx] = string.format("%s", file)
+    end
+
+    return contents
+end
+
+return M