Answer to presences of type='probe'

Only send the IRC server presence if the user has this JID in their roster

Implement the roster presences from IRC servers

Send an additional unsubscribed presence when receiving an unsubscribe one

Send responses  when we receive an unsubscribed presence

Use a db roster to manage biboumi’s presence with the contacts

Remove a bunch of useless string_literal usage

Add a Record History option in the Channel configuration form

fix #3269

Merge branch 'orm' into 'master'

Pure c++ sqlite3 ORM

Closes #3271

See merge request !11

Implement our own database ORM, and update the whole code to use it

Entirely replace LiteSQL

fix #3271

Make the IRC channel configuration form available from the MUC config

fix #3250

Limit the number of rooms sent by default in the disco#items response

fix #3219

Merge branch 'mam_default_limit' into 'master'

Limit of 100 MAM messages, if no other limit has been set by the client

Closes #3256

See merge request !9

Limit of 100 MAM messages, if no other limit has been set by the client

fix #3256

Handle the RSM "max" value in the MAM requests

fix #3255

Apply all the clang-tidy modernize-* fixes

Handle some iq of type='error' as valid ping response

fix #3251

Remove two sneaky log_debug

Add a missing namespace in the server disco#info response

Respond to disco#info on MUC JIDs

Otherwise, some client won’t do MAM, since they don’t know biboumi supports
it.