Fix/remove old crewjam saml (#217)

* Old content

* fix

* Fix 2, Initializing email field

* Redirect to /user/edit path only needed if we are admin.

* Mention `SUBSPACE_ENDPOINT_HOST` in the Readme

* fixing small typo in readme

* added environment variable to disable DNS entry in wireguard conf

* changing local variable name in if

* SUBSPACE_DISABLE_DNS now a flag; if set with any value, it is activated

* added option to disable dns in wireguard conf

* updated readme

* using same topology of RequireAccount for sso and webhandler

* casting session to JWTSessionClaims

* removed commented code

* removed debug from entrypoint

* restored debug messages

* update go.mod

* logging session error from samlsp

* chaning session log to debug

* debugging all session errors

* removing old crewjam saml reference

* fix disableDNS type and implementation to match upstream

Co-authored-by: Jack <[email protected]>
Co-authored-by: Adrián González Barbosa <[email protected]>
Co-authored-by: Jared P Bostic <[email protected]>
Co-authored-by: Fabian <[email protected]>
Co-authored-by: Miroslav Shubernetskiy <[email protected]>
Co-authored-by: Gabriel Chamon Araujo <[email protected]>

go.sum

@@ -6,8 +6,6 @@ github.com/beevik/etree v1.1.0 h1:T0xke/WvNtMoCqgzPhkX2r4rjY3GDZFi+FjpRZY2Jbs=
 github.com/beevik/etree v1.1.0/go.mod h1:r8Aw8JqVegEf0w2fDnATrX9VpkMcyFeM0FhwO62wh+A=
 github.com/crewjam/httperr v0.0.0-20190612203328-a946449404da h1:WXnT88cFG2davqSFqvaFfzkSMC0lqh/8/rKZ+z7tYvI=
 github.com/crewjam/httperr v0.0.0-20190612203328-a946449404da/go.mod h1:+rmNIXRvYMqLQeR4DHyTvs6y0MEMymTz4vyFpFkKTPs=
-github.com/crewjam/saml v0.3.0 h1:nsICCm1susKcMzqhZ+XwOvYUG55Omu1dHlyyknhgh1M=
-github.com/crewjam/saml v0.3.0/go.mod h1:pzACCdpqjQKTvpPZs5P3FzFNQ+RSOJX5StwHwh7ZUgw=
 github.com/crewjam/saml v0.4.5 h1:H9u+6CZAESUKHxMyxUbVn0IawYvKZn4nt3d4ccV4O/M=
 github.com/crewjam/saml v0.4.5/go.mod h1:qCJQpUtZte9R1ZjUBcW8qtCNlinbO363ooNl02S68bk=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=