Schematics: deprecated usage of Type<T> or InjectionToken<T>

[timdeschryver]

The schematics are currently generating deprecated versions of TestBed.get

deprecated from v8.0.0 use Type<T> or InjectionToken<T> This does not use the 
deprecated jsdoc tag on purpose because it renders all overloads as deprecated in
TSLint due to https://github.com/palantir/tslint/issues/4522.

Other information:

For example:

TestBed.get(CustomersEffects);

Should become:

TestBed.get<CustomersEffects>(CustomersEffects);

If accepted, I would be willing to submit a PR for this feature

[ ] Yes (Assistance is provided if you need help submitting a pull request)
[ ] No

[itayod]

@timdeschryver may I take this?

[brandonroberts]

It's yours