Allow custom parameter for password flow

[abforman]

While hooking up an Angular2 app to Azure Active Directory, I hit a error where I was told that 'resource' is a required field after calling this.oauthService.fetchTokenUsingPasswordFlowAndLoadUserProfile().

AADSTS90014: The request body must contain the following parameter: 'resource'

From my javascript debugger, if I force-fed that query parameter in at oauth-service.ts:544, it would then process correctly.

The parameters in the token request don't include 'resource', so it would be good to include it, if it is set/available.

[manfredsteyer]

In the next version that lands in a few days, you can set this parameter in the config in the property customQueryParams:

config.customQueryParams = {
   resource: 'xyz'
}

[abforman]

Awesome; thank you Manfred!

[arruda1985]

@manfredsteyer how can i recover this values after login?

i can't find this parameters at onTokenReceived...