[netcore] Fixes for System.Reflection tests. (mono/mono#13776)

[netcore] Fixes for System.Reflection tests. (mono/mono#13776)

* [netcore] Add error checking for assembly version parsing, pass the full 32 bit value to managed code.

* [netcore] Implement RuntimeType.StructLayoutAttribute.

* [runtime] Implement RuntimeFieldHandle.GetValueDirect (), convert SetValueDirect () to handles.

* [netcore] Implement Assembly.GetFiles ()/GetForwardedTypes ().

* [runtime] Handle 'ARM' as a valid architecture in assembly name parsing.

* [netcore] Implement ParameterInfo.MarshalAsAttribute, AssemblyName.EscapedCodeBase.

* [netcore] Add exclusions for System.Reflection.Tests.

* [netcore] Update test exclusions.

* [netcore] Fix CustomAttributeExtensions.

* [netcore] Add a list of passing test suites.

* [netcore] Add a missing argument check.

* Update Object.cs

Commit migrated from https://github.com/mono/mono/commit/df846bcbc9706e325f3b5dca4d09530b80e9db83