* Get rid of ugly statik
go1.16 introduced the embed package, it's the more graceful solution for embedding file into binary.
https://golang.org/pkg/embed/
* remove statik totally
* split go and static files in assets
token is the current token comparison, and oidc generates oidc token using client-credentials flow. in addition - add ping verification using the same method
Now that the common configuration objects and session objects are part
of a public API, they need to be documented in a way that can be read
with godoc. This commit should lead to easier development with FRP as a
library.