notify fpm service if an .ini file changed or php module installed

notify the fpm service => reload if there are changes to:
- php.ini's 
- modules (installed, removed)
- modules .ini files 

for example if you install the module "ldap" - this will now results in:

Notice: /Stage[main]/Website::Typo3/Php::Module[ldap]/Package[php5-ldap]/ensure: ensure changed 'purged' to 'present'
Info: /Package[php5-ldap]: Scheduling refresh of Service[php5-fpm]

and the module is loaded - otherwise you have to reload the fpm deamon manually (nobody wants that..)