Sessions aliases

[wufe]

A created session should have a readable alias.
The alias would be stored permanently with its commit.

The session would be identified with a struct like this

type SessionIdentifier struct {
    CommitID string
    Alias string // Previously known as checkout
    AliasType AliasType
}

const (
    AliasType string
    AliasTypeLinked AliasType = "linked" // The alias is linked to its origin checkout (e.g. a branch or a tag)
    AliasTypeMadeUp AliasType = "made-up" // The alias has been created by a random name generator
    AliasTypeUserDefined AliasType = "user-defined" // The alias has been defined by the user
)

The aliases could be used for handling secondary applications permalinks