add Copy to Moment type (#3476)

* add Copy to Moment type

* bump version

* add Copy to support::Traits::Time::Moment and removed few clones

substrate/node/runtime/src/lib.rs

@@ -80,7 +80,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	// implementation changes and behavior does not, then leave spec_version as
 	// is and increment impl_version.
 	spec_version: 151,
-	impl_version: 151,
+	impl_version: 152,
 	apis: RUNTIME_API_VERSIONS,
 };