Use RotatableJWKSet and add a console command for key rotation

[Spomky]

The Jose library now offers an easy way to create a JWKSet and optionally rotate keys after a period of time.
This feature could be used so that the bundle will automatically create a JWKSet for signature operations and, if enabled, encryption depending on algorithms to use.
This feature will remove up to 15 configuration lines:

• https://github.com/Spomky-Labs/lexik-jose-bridge/blob/master/Tests/app/config/config.yml#L31:L46
• https://github.com/Spomky-Labs/lexik-jose-bridge/blob/master/Tests/app/config/config.yml#L55
• https://github.com/Spomky-Labs/lexik-jose-bridge/blob/master/Tests/app/config/config.yml#L58

Because the developers should not care about cryptographic keys and algorithms, then

• the signature algorithm should be set by default.
• the encryption of the token could be always enabled (TBD).
• the encryption algorithms should be set by default.

The bundle could also provide a console command to rotate keys if they are older than a period of time passed as an argument (e.g. bin/console lexik_jose:rotate-keys "7 days").

This will also fix #13.

• RotatableJKWSet integration
• Encryption for all tokens (security feature)
• Console command for key rotation (security feature)
• Console command for key regen (when an algorithm is changed)
• Default signature algorithm in the configuration
• Default encryption algorithms in the configuration

[Spomky]

Done.
Encryption option is let unchanged, but is still hightly recommended.