Mango Ragdoll V10.1 - embedded third-party physics sources

JBullet / Bullet
- Source used: user-provided bubblecloud/jbullet master archive.
- Java package: com.bulletphysics
- Original license/copyright headers are preserved in the source files.
- A copy of the JBullet/Bullet license notice is included under META-INF/licenses.

Java 3D Vecmath 1.5.2
- Artifact/source used: user-provided vecmath-1.5.2-sources.jar.
- Java package: javax.vecmath
- License metadata: GPL version 2 with the Classpath Exception.
- Original file headers are preserved.
- The exact source archive is included under META-INF/vendor-sources so the corresponding source accompanies the compiled copy.
- A GPLv2 + Classpath Exception license copy is included under META-INF/licenses.

No Gradle dependency, MCreator plugin, BAT, PowerShell, or installer script is used by this package.
