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.

Add a missing “pass by reference”

Refactoring louloulibs and cmake

Use OBJECT libraries
Remove the louloulibs directory
Write FOUND variables in the cache

Pass the shared_ptr by reference, to avoid useless copies

Fix the order of from and to address in muc traffic info reply

And add a test for it.

fix #3238

Fix the previous commit

fix #3231

Do not send a not-connected error, on "unavailable" presences

fix #3231

Fix some issues found by sonar cube

Send iq error/result when the user changed a MODE command  with an iq

And add tests for all the mode changes

Introduce a XmlSubNode class that automatically adds itself into its parent

Remove a line from a WIP that should not have been added