[MODULES-1484] Add support for install_options for all package resources...

Add install_options parameter to mysql::bindings, mysql::client, and
mysql::server. The default is undef.

Wrap all package resources in an if statement checking
$mysql::[bindings,client,server]::install_options for undef.
this if/else is *not* necessary. nowhere.

if you pass undef to a resource's parameter, nothing happens.