Adding HttpServerNRTEventBridge
C++ files for http handler bridge
Add code for http handles in bridge and C#

Add code for C++ bridge
Add code in C# for both OnNext and GetSpec calls
Update bridge class and interface
driver dll
merge with reef-bridge
JobDriver change for Http Bridge integration

JobDriver change
JobClient change
HttpHandler interface to add setUriSpecification
Some logs
mered with reef-bridge
Fix merge issues
make RequestParser public
Fixes for code review
Merge from reef-bridge

Use Driver service configuration for Http server
Separate configuration for Http server
Removed _handler and _jLogger

Removed _handler and _jLogger
Rename some of the classes/variables.
Merge pull request #798 from Microsoft-CISL/reef-bridge-juwang

juwang- Http Server Java/CLR Bridge