Restructure frame_support macro related exports (#14745)

* make reexports private

* make reexports private 2

* make reexports private for runtime-benchmarking

* make reexports private for try-runtime

* fix for try-runtime

* make reexports private for tests

* fmt

* make reexports private for tests

* make reexports private for experimental

* fix beefy

* fix ui test

* fix ui test

* fix benches

* ".git/.scripts/commands/fmt/fmt.sh"

* fix contracts use

* wip

* wip

* do not reexport sp_api::metadata_ir

* fix CI checks

* fix support tests

* ".git/.scripts/commands/fmt/fmt.sh"

* Update frame/support/src/lib.rs

Co-authored-by: Bastian Köcher <git@kchr.de>

* import codec directly

* fmt

* fix node-cli tests

---------

Co-authored-by: command-bot <>
Co-authored-by: Bastian Köcher <git@kchr.de>

substrate/frame/support/procedural/src/benchmark.rs

@@ -724,7 +724,7 @@ fn expand_benchmark(
 		Ok(ident) => ident,
 		Err(err) => return err.to_compile_error().into(),
 	};
-	let codec = quote!(#krate::frame_support::codec);
+	let codec = quote!(#krate::frame_support::__private::codec);
 	let traits = quote!(#krate::frame_support::traits);
 	let setup_stmts = benchmark_def.setup_stmts;
 	let verify_stmts = benchmark_def.verify_stmts;