[Feature Request] Add localization files for GUI

[anon1231823]

I saw that the strings to translate the GUI for the addon are embedded directly in the main code

Example: From Options.lua

MinimapButtonShow = {
                    type = "toggle",
                    order = 1,
                    name = "Show Minimap Button",
                    get = function(info) return not Addon.db.profile.MinimapButton.LibDBIcon.hide end,
                    set = function(info, value)
                        Addon.db.profile.MinimapButton.LibDBIcon.hide = not value
                        if value then
                            LibStub("LibDBIcon-1.0"):Show("VoiceOver")
                        else
                            LibStub("LibDBIcon-1.0"):Hide("VoiceOver")
                        end
                    end,
                },

But I think we ought to have localization files such that

name = L["Show Minimap Button"],

So then there would be some files like localization.es.lua (and the rest of the locales)

if GetLocale() ~= "esES" and GetLocale() ~= "esMX" then return end

["Show Minimap Button"] = "Mostrar botón del minimapa"