Move to build mod

Signed-off-by: Ryan Levick <[email protected]>

Author: rylev

crates/runtime-factors/src/runtime_factors.rs renamed to crates/runtime-factors/src/build.rs

@@ -1,6 +1,6 @@
-mod runtime_factors;
+mod build;
 
-pub use runtime_factors::FactorsBuilder;
+pub use build::FactorsBuilder;
 
 use std::path::PathBuf;