feat: new auth (#218)

The access level path control used by dufs has two disadvantages:

1. One path cannot support multiple users
2. It is very troublesome to set multiple paths for one user

So it needs to be refactored.
The new auth is account based, it closes #207, closes #208.

BREAKING CHANGE: new auth

Cargo.toml

@@ -44,6 +44,7 @@ content_inspector = "0.2"
 anyhow = "1.0"
 chardetng = "0.1"
 glob = "0.3.1"
+indexmap = "1.9"
 
 [features]
 default = ["tls"]
@@ -59,7 +60,6 @@ regex = "1"
 url = "2"
 diqwest = { version = "1", features = ["blocking"] }
 predicates = "3"
-indexmap = "1.9"
 
 [profile.release]
 lto = true