Add support for NVIDIA CPERs

Support Nvidia CPER entries.

Change-Id: Iea9bde181ead55ad99cdb2a341501bf48e1d82a8
Signed-off-by: Ed Tanous <etanous@nvidia.com>

Formatting coding style

* .json files
* .md files

Signed-off-by: John Chung <john.chung@arm.com>
Change-Id: I5fec2bbc1e76ae68a29eb5610f567979cc794bc8

Add CPER conversion for single section records.

Add human readable name to IA32x64 error info GUIDs.

Fix errors in CPER write, remove PCIe AER support.

Fix various errata found from testing.

Add test suite, fix a mountain of small errors.

Fix minor typo in JSON schema.

Add ARM CPER out, fix struct misalignment.

Finish JSON validator, add debug out.

Add schema validator, make schemas root relative.

Fix minor errors in spec, add JSON specification.