## Summary
Within the scope of the FEDRamp High RM, it is necessary to detect if an user should connect to a FEDRamp colo.
At first, it was considered to add the --fedramp as global flag however this could be a footgun for the user or even an hindrance, thus, the proposal is to save in the token (during login) if the user authenticated using the FEDRamp Dashboard. This solution makes it easier to the user as they will only be required to pass the flag in login and nothing else.
* Introduces the new field, endpoint, in OriginCert
* Refactors login to remove the private key and certificate which are no longer used
* Login will only store the Argo Tunnel Token
* Remove namedTunnelToken as it was only used to for serialization
Closes TUN-8960
## Summary
This commit refactors some of the flags of cloudflared to their own module, so that they can be used across the code without requiring to literal strings which are much more error prone.
Closes TUN-8914
cloudflared tail will now fetch the management token from by making
a request to the Cloudflare API using the cert.pem (acquired from
cloudflared login).
Refactored some of the credentials code into it's own package as
to allow for easier use between subcommands outside of
`cloudflared tunnel`.