Metadata V15: Derive TypeInfo for describing runtime types (#13272)

* scale_info: Derive TypeInfo for types present in runtime API

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cargo: Update Cargo.lock

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

substrate/Cargo.lock

@@ -5615,6 +5615,7 @@ version = "7.0.0"
 dependencies = [
  "bitflags",
  "parity-scale-codec",
+ "scale-info",
  "sp-runtime",
  "sp-std",
  "sp-weights",
@@ -8151,6 +8152,7 @@ dependencies = [
  "sc-network",
  "sc-network-test",
  "sc-telemetry",
+ "scale-info",
  "schnorrkel",
  "sp-api",
  "sp-application-crypto",
@@ -9959,6 +9961,7 @@ dependencies = [
  "futures",
  "impl-trait-for-tuples",
  "parity-scale-codec",
+ "scale-info",
  "sp-core",
  "sp-runtime",
  "sp-std",