Add Babric mod loader support

[Omegaplexx]

Co-Authored-By: Claude:claude-4.6-sonnet

Adds support for Babric - a Fabric-based mod loader for Minecraft Beta 1.7.3. After merging, Prism Launcher will be able to install and launch Babric the same way it handles Fabric or Quilt. I've made a pull request for the main repository, but I was advised to add Babric to the meta server first

Changes

• meta/common/babric.py - Glass Maven and Babric Meta API constants
• meta/run/update_babric.py - fetches version lists and metadata from meta.babric.glass-launcher.net
• meta/run/generate_babric.py - generates two launcher components per Minecraft version:
  • babric/{version}.json - the loader itself (config library + JVM argument)
  • net.fabricmc.intermediary/{version}.json - mappings (reuses the Fabric intermediary component)
• update.sh - added Babric update/generate steps to the pipeline
• pyproject.toml - added updateBabric and generateBabric entry points

Test

Ran all the chcks manually, and they're passed.

update_babric fetched data from the Babric Meta API:

• upstream/babric/meta-v2/intermediary.json
• upstream/babric/meta-v2/loader.json
• upstream/babric/jars/babric.intermediary-upstream.b1.7.3.json

generate_babric produced all launcher files:

• launcher/babric/b1.7.3.json - contains babric:log4j-config:1.0.0 library and -DFabricMcEmu JVM argument
• launcher/net.fabricmc.intermediary/b1.7.3.json - marked volatile, references the correct maven artifact
• launcher/babric/package.json - recommended: ["b1.7.3"]