Move the memory-source contracts and readers off the engine (#18 §B4) - #46

Reviewed 0 files; 0 findings. 39 files could not be reviewed: Cargo.toml, core/Cargo.toml, core/src/sources/readers/conversation.rs, core/src/sources/readers/folder.rs, core/src/sources/readers/github.rs, core/src/sources/readers/rss.rs, core/src/sources/readers/web_page.rs, core/src/sources/registry.rs, core/src/sources/sync.rs, core/src/sources/types.rs, sources/Cargo.toml, sources/src/lib.rs, sources/src/raw_kind.rs, sources/src/readers/conversation.rs, sources/src/readers/conversation_tests.rs, sources/src/readers/folder.rs, sources/src/readers/folder_tests.rs, sources/src/readers/github.rs, sources/src/readers/github/api.rs, sources/src/readers/github/git.rs, sources/src/readers/github/git_tests.rs, sources/src/readers/github/issues.rs, sources/src/readers/github/types.rs, sources/src/readers/github_tests.rs, sources/src/readers/mod.rs, sources/src/readers/rss.rs, sources/src/readers/rss/types.rs, sources/src/readers/rss_tests.rs, sources/src/readers/ssrf.rs, sources/src/readers/ssrf_tests.rs, sources/src/readers/web_page.rs, sources/src/readers/web_page/types.rs, sources/src/readers/web_page_tests.rs, sources/src/registry.rs, sources/src/registry_tests.rs, sources/src/types.rs, sources/src/types_tests.rs, sources/src/validation.rs, sources/src/validation_tests.rs.

No findings.