Merge pull request microsoft#632 from vancem/UpdateVersion

Update verrsion number to 2.0.12

ContinueOnError, minor fixes (microsoft#621)

* ContinueOnError, minor fixes

1. Added a ContinOneError option when creating an ETLX file.  Basically if there is an error reading the input it simply stops converting and makes an ETLX file out of what it has.  This is useful when there corruption, but it is not at the start.  This not the default.   PerfView uses it when the /ContinueOnError option is given.

2. Fixed issue with msdia140 not working on .NET Core properly (we were using foreach which drags in conversion routines not supported on .NET Core.

3.  Added an explict reference to nuget.org when looking up packages.  We have had people trying to build PerfView in environments that don't have this reference (they have a clone).

4.  Added a 'ThreadState' entry ot the 'Blocked CSwitch' stack in the 'AnyStacks view'.  This is useful.

* Previous replacement for foreach did not work.

Merge pull request microsoft#614 from vancem/master

Fix for DLL not found on Desktop for TraceEvent when collecting

Merge pull request microsoft#614 from vancem/master

Fix for DLL not found on Desktop for TraceEvent when collecting

Merge pull request microsoft#588 from vancem/CleanupIfDefs

Cleanup unused ifdefs

Merge pull request microsoft#583 from vancem/UpdateDocs

Add Docs for TraceEvent

Event blocks (microsoft#546)

* Changes for the next version of the EventPipe file format

* Added Versioning support, documentation

* Update V3 format for Event MetaData

This simplifies the V3 format.  I also spit out the code for the old format
so it would be easier to remove it later.

* nits

* making it work with the latest format

* padding support

* get ProviderId based on ProviderName, assume Metadata is mandatory and it's lenght does not come first

* update the tests

* update test file after merge of my fork with CoreCLR/master

* update C# version for all projects

* improvements after code review

* improvements after code review

* aligning change: after the block size comes eventual padding

Remove attempt to sign ETWClrProfiler.dll (microsoft#543)

Remove attempt to sign ETWClrProfiler.dll (microsoft#543)

Merge pull request microsoft#516 from vancem/MsPdbSourceLink

Support SourceLink in Microsoft PDBs