Implement support for patch section in wasm-builder (#3599)

* Implement support for `patch` section in wasm-builder

* Update core/utils/wasm-builder/src/wasm_project.rs

* Support patch by path

* Go down to the actual data

substrate/core/test-runtime/build.rs

@@ -21,7 +21,7 @@ fn main() {
 		"wasm_binary.rs",
 		WasmBuilderSource::CratesOrPath {
 			path: "../utils/wasm-builder",
-			version: "1.0.5",
+			version: "1.0.6",
 		},
 		// Note that we set the stack-size to 1MB explicitly even though it is set
 		// to this value by default. This is because some of our tests (`restoration_of_globals`)