openid token management impl

oidc token management

implement oidc token refreshing

add openid-client

add oidc refresh logic

add tests for oidc logic

introspect needs special urls so removing

updated tests to reflect introspect not being able to be used

prettier changes

chore: use a version of open-id client that supports node 8

fix id-token ref to id_token

update token expiration to be more flexible

replace the tokenExp with tokenExpirationCache

update if for first time interaction with a user

replace token expiration map with single expiration

update test descriptions to be more accurate

correct test to set initial expiration

add oidc types

reference types in class

cast any so we can keep properties private

prettier

Author: Louis Murray