add kill-clips (#11494)

* Add Kill Clips plugin

* Add jcodec dependency verification for kill-clips

* Update kill-clips commit hash

* Update kill-clips commit

* Remove jcodec dependency, bump kill-clips commit

The kill-clips plugin no longer depends on jcodec for H.264 encoding;
it now ships only the in-tree MJPEG AVI encoder. Drops the jcodec
entries from build.gradle and verification-metadata.xml, and updates
the pinned plugin commit.

* Bump kill-clips to 246025c (crash-safety hardening)

* Apply suggestion from @riktenx

* Add standard build flag for kill-clips

* Codex...

* Bump kill-clips for standard build metadata

---------

Co-authored-by: riktenx <riktenx@gmail.com>

plugins/kill-clips

@@ -0,0 +1,3 @@
+repository=https://github.com/csvernon/killClips.git
+commit=7a58b096fa7c94f5da24f2f5862285befa8a8144
+warning=This plugin submits your IP address and game footage to a 3rd-party server not controlled or verified by Runelite developers.