We remove the functionality to see all auth sources and to test them
publically. Testing the auth sources can be done inside the admin
module.

Added is a configuration option that allows the administrator to specfy
another place to redirect to for people who land on the front page.

Closes: #1510

Co-Authored-By: Bart Langelaan <langelaanbart@gmail.com>

They were broken in master. The admin module now performs this
function. So to reduce duplication and to keep the metadata endpoints
simple, we remove the broken code here instead of fixing it.

If the publishing protocol permits MIME-based identification of content types, the content typeof the metadata instance MUST be application/samlmetadata+xml.

* Migrate email utils to non-static

* Migrate http utils to non-static

* Migrate net utils to non-static

* Migrate random utils to non-static

* Migrate system utils to non-static

* Migrate time utils to non-static

* Migrate xml utils to non-static

* Upgrade notes

* Update test-framework

* Fix tests

* Import the saml2 SspContainer into SSP

* Comment code targeted at saml2v5 for now

* Migrate array utils to non-static

* Migrate attribute utils to non-static

* Migrate auth utils to non-static

* Migrate config utils to non-static

* Migrate crypto utils to non-static

* Raise coverage

* Fix rebase issue

They are outside of the module so can be called when the module is
disabled, which gives an error somewhere deep in the call stack.
Check for all endpoints whether saml2-idp is enabled in config
and whether the module is enabled before doing anything else.

Improve error handling

Fix ArtifactResolution due to misuse of Issuer

Convert to our wrapper class for assertions