Move expressions_10k test data to separate test repo

Fix types to work with new engine paths

Fix manifest paths to match new engine structure

Rename directory for engines, add base engine config

Restructure manifest

Fix config rule path

Use complete path in manifest

Move dev_7-2 and dev_7-3 into rulesets/ subdirectory and update manifest and asset_manager.py accordingly.

Improve manifest structure

Add dev_7-2 ruleset and test data to manifest; track new files with LFS

initial commit