lookup: Sort identities according to their status

Following #385 (closed).

id/lookup command displays IDs without sorting them out. However, IDs can be in different states :

• member
• will member
• revoked
• sleeping (after 1 years without membership, but before automatic revoke after 2 years)
• non-member because not enough certifications

I think lookup should sort the IDs. I am not sure on how to quickly find infos for cases 4 and 5.

Result could be like this :

silkaj id titi
Public keys found matching 'titi':

Members:
→ 9zHLPCPwEH37wDfPpPoajt7zxP13xKFr5n9HY2CYtBEq:CPg ↔ humezlaetitia
→ 4qJZFRfArLaUMEXDhsd69unsKynEFNLFazAVij4HNsBa:F4z ↔ laetitia97421
→ 4LCdTC9QsmqbFSHAhyaqGdDCVPr8Ywu2DZ8hDCzkdx4n:8ta ↔ Amandinelaetitia
→ CehfxBHrowP6tXouR73GS52QhGAoNMtabooKbCvT7f3j:6cG ↔ Laetiti974
→ FtZdA1HzHcDG6utoEgg6R5jjXfEne2ftS2UzvXajKurp:6Sm ↔ Laetitia

Will members:
→ EUn8uLJxgc3fVXJ1fBA74re4iD4Ws8Nk2xHytX1wLMfK:AQ2 ↔ LaetitiaCarivenc
→ HqHZt9J1U7MwC3RF1bSjPgxACsTypfNjUThYFMZZfK6X:Dk1 ↔ LaetitiaHOFF

Revoked:
→ 5Vcm1zkHKoAMo9yy7Lk2HDX2Yn54agavtEUdrcFNmqkP:8mU ↔ laetitiajanot
→ BfncGdTeq8qvhPZnBaM8T76SHM9xfx78ASRNZtGp64rZ:7tP ↔ titi

Sleeping:
→ BWKuSHYojjwzAXZZxSFTf5XVWneUMZqoWGUJEfWaFRL9:21F ↔ titi43