use curl instead of php function for FIMS call

[mkoo]

we want to avoid having to ask Joyce to modify php.ini everytime someone adds data! security reference: https://www.owasp.org/index.php/PHP_Top_5#P1:_Remote_Code_Execution

[tigerhawkvok]

Globally changing this is potentially dangerous, a search on the repo shows 200+ uses across libraries across multiple providers, including Google and Facebook