Transition into monorepo (#180)

* evm template integrated

* workflows modified per template

* workflow fixes

generic-template/runtime/build.rs

@@ -0,0 +1,13 @@
+#[cfg(feature = "std")]
+fn main() {
+    substrate_wasm_builder::WasmBuilder::new()
+        .with_current_project()
+        .export_heap_base()
+        .import_memory()
+        .build()
+}
+
+/// The wasm builder is deactivated when compiling
+/// this crate for wasm to speed up the compilation.
+#[cfg(not(feature = "std"))]
+fn main() {}