typescript-inversify generator wrongly handles array type parameters

[michalzubkowicz]

Description

api.service.mustache generates such code

if (param !== undefined) {
    param.forEach((element) => {
    queryParameters.push('param='+encodeURIComponent(String(param)));
})
}

Instead of

if ($param !== undefined) {
    $param.forEach((element) => {
    queryParameters.push('param='+encodeURIComponent(String(element)));
})
}

Wrong variable is used in loop.

Suggest a fix

I'll provide PR.