Package will be loaded at Visual Studio startup
Fixed issue of not showing platform selector

Due to case-sensitive GUID comparison
Added arguments validation in AD7Event
Aligned async notifications from GDB with old C++ implementation

Posted requests work identically and in compatible mode as the previous C++
implementation. The biggest advantage is that all now is based on
request-response model and all Thread.Sleep(0)'s have been removed from code
causing a great improvement in performance.
Fixed dynamic value evaluation

The response values was parsed incorrectly
Engine can now handle null Threads

A bit of handling in case main structures are null-ed.
Mostly helpful during debugging.
All projects can now be AnyCPU

As they don't depent on the C++ GDBParser project anymore!
Added dedicated dispatcher using single thread

All scheduled events are executed synchronously in FIFO order on a
dedicated thread.
Received response event also points to the request
GDB "file-set" request handles paths with spaces
Improved processing of notifications from GDB

Now parsed content is passed to the DE via a dedicated thread (as in C++
GDBParser) not to block communication with GDB. Fixed also a bug, that
could case a hang (infinite loop) of paring-instruction, when processing
'breakpoint-modified' notification. Finally added more tests.

Unfurtunatelly there are still actions in VisualStudio that could case an
improper behaviour:
 * stepping in source-code
 * notifications can start coming before DE is fully initialized
 * complex breakpoints edition can cause unexpected by BreakpointManager
   responses from GDB