Add check for any in BE

[littlewhywhat]

Right now there is no error if we give 'any' as a parameter to the type-safe function.

One of possible options:
https://stackoverflow.com/a/32228674

[littlewhywhat]

noImplicitAny doesn't feel it - you still can do something like this:
`
const foo = (a: string) { console.log(a) }

let a: any

foo(a)
`
and have no errors

[littlewhywhat]

and the issue originated from here #113 (comment) where in express.Request - body is mentioned as any... so this case will have to be caught in review I guess