refactor: RuntimeType creation and member resolution (#2066)

* refactor: RuntimeType creation and member resolution
refactor: RuntimeType companion functions
add: AwsCargoDependency object
refactor: move aws runtime crate fns into AwsRuntimeType
update: all code affected by the above changes

* update: split AwsCargoDependency into separate package
rename: runtimeCrate to smithyRuntimeCrate
remove: smithy prefix from RuntimeType

* fix: missing dep issue
update: RuntimeType import

* fix: missing dep issue in server
rename: pascal-case functions to be camel-case

* revert: changes to CodegenTestCommon.kt

* fix: error I introduced in a merge
fix: outdated doc comment