Read files macro for loading reading files to string at compile-time

Makefile for formatting and linting

Workspace for subcrates.

Moved crates to subdir and moved subcrate configs to workspace.*

.github/workflows/build.yaml

@@ -15,4 +15,4 @@ jobs:
       - name: Build
         run: cargo build --verbose
       - name: Run tests
-        run: cargo test --verbose --all-features
+        run: cargo test --verbose --all-features --workspace