This should make it easier to add encryption tests later.

- implemented NtQueryInformationThread's ThreadDescriptorTableEntry
  information class
- used it to implement the kernel32's equivalent (GetThreadSelectorEntry)

- implemented ntdll.NtQueryInformationFile's FilePipeLocalInformation control code 
- reimplemented kernel32.GetNamedPipeInfo on top of it
- enhance current features to make this work both on client and server handles
- now also returning the number of instances

Thanks to Juan Lang for catching this one.

Implement NdrFullPointerFree.

rpcrt4: Implement remaining part of NdrFullPointerQueryPointer and implement NdrFullPointerInsertRefId.

Add some tests.

crypt32: Implement CertVerifyCRLTimeValidity and partially implement CertVerifySubjectCertificateContext.

ComputeConformanceOrVariance it is still necessary to set the count
variable to the value retrieved.