Replace json-simple with Jackson

[bgrozev]

Replace the org.json.simple dependency with Jackson (jackson-databind, jackson-module-kotlin).

• Debug state methods now return JsonNode
• Update jitsi-utils to 1.0-SNAPSHOT

[JonathanLennox]

Looks good, pending update of dependencies

[codecov]

Codecov Report

❌ Patch coverage is 21.98582% with 220 lines in your changes missing coverage. Please review.
✅ Project coverage is 26.20%. Comparing base (793a94d) to head (6d14950).

Files with missing lines	Patch %	Lines
...o/src/main/kotlin/org/jitsi/jicofo/FocusManager.kt	6.45%	29 Missing ⚠️
...src/main/kotlin/org/jitsi/jicofo/JicofoServices.kt	0.00%	25 Missing ⚠️
...n/kotlin/org/jitsi/jicofo/xmpp/muc/ChatRoomImpl.kt	0.00%	22 Missing ⚠️
...in/org/jitsi/jicofo/xmpp/muc/ChatRoomMemberImpl.kt	0.00%	17 Missing ⚠️
.../src/main/kotlin/org/jitsi/jicofo/bridge/Bridge.kt	0.00%	16 Missing ⚠️
...i/jicofo/bridge/colibri/ColibriV2SessionManager.kt	0.00%	13 Missing ⚠️
...n/kotlin/org/jitsi/jicofo/bridge/BridgeSelector.kt	0.00%	12 Missing ⚠️
...lin/org/jitsi/jicofo/jibri/JibriDetectorMetrics.kt	0.00%	10 Missing ⚠️
...c/main/kotlin/org/jitsi/jicofo/ktor/Application.kt	0.00%	9 Missing ⚠️
...kotlin/org/jitsi/jicofo/xmpp/jingle/JingleStats.kt	0.00%	8 Missing ⚠️
... and 21 more

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #1284   +/-   ##
=========================================
  Coverage     26.19%   26.20%           
- Complexity      468      469    +1     
=========================================
  Files           126      126           
  Lines          7875     7908   +33     
  Branches       1215     1212    -3     
=========================================
+ Hits           2063     2072    +9     
- Misses         5499     5523   +24     
  Partials        313      313           

Files with missing lines	Coverage Δ
.../main/kotlin/org/jitsi/jicofo/xmpp/muc/ChatRoom.kt	0.00% <ø> (ø)
...tsi/jicofo/bridge/colibri/ColibriSessionManager.kt	0.00% <ø> (ø)
...g/jitsi/jicofo/conference/JitsiMeetConference.java	0.00% <ø> (ø)
...tsi/jicofo/conference/JitsiMeetConferenceImpl.java	37.61% <100.00%> (+0.18%)	⬆️
...lin/org/jitsi/jicofo/conference/SourceSignaling.kt	93.93% <100.00%> (+0.39%)	⬆️
...otlin/org/jitsi/jicofo/conference/source/Source.kt	0.00% <0.00%> (ø)
...tlin/org/jitsi/jicofo/xmpp/jingle/JingleSession.kt	0.00% <0.00%> (ø)
...tlin/org/jitsi/jicofo/util/PreferenceAggregator.kt	74.62% <83.33%> (ø)
.../main/kotlin/org/jitsi/jicofo/xmpp/XmppServices.kt	0.00% <0.00%> (ø)
...n/org/jitsi/jicofo/xmpp/muc/ChatRoomRoleManager.kt	40.29% <66.66%> (ø)
... and 26 more

---

Continue to review full report in Codecov by Harness.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 793a94d...6d14950. Read the comment docs.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.